All questions

GMAS Biology Practice Test

Browse all practice questions for the GMAS Biology Practice Test. Search by topic, open any question and review its full explanation, then test yourself in the practice quiz.

GMAS Biology Practice Test 2026 – Comprehensive Exam Prep course image
All questions

These questions are part of the practice quiz. Start practicing

  • Site of pollen grain production. Part of the stamen.
  • A cross between individuals that differ in a single trait is called what?
  • A colorful, leaflike structure of some flowers.
  • Which graph shape is associated with logistic growth?
  • Cellular organization, reproduction, metabolism, homeostasis, heredity, response to stimuli, growth and development, and adaption through evolution.
  • Which description applies to digestion in which food enters and waste leaves through the same opening?
  • The pollen-producing male reproductive organ of a flower, consisting of an anther and a filament.
  • Which biomolecule class is formed when amino acids are linked together by peptide bonds?
  • The class name for reptiles is what?
  • Which is the main energy source cells use for most of their work?
  • Moving molecules across the cell membrane.
  • Which factor is typically density dependent in populations?
  • Which part of the flower becomes the seed-bearing structure after fertilization?
  • Pieces of genetic material surrounded by a protein coat are called what?
  • Which type of respiration does not require oxygen?
  • What term describes the combined genetic information of all the members of a population?
  • Which term describes the total feeding relationships in an ecosystem, not just a single chain?
  • Which process requires energy to move substances across a membrane against their concentration gradient?
  • Which theory proposes that mitochondria and chloroplasts originated from endosymbiotic relationships with prokaryotes?
  • What type of bond occurs due to attraction between a slightly positive hydrogen and a slightly negative atom elsewhere within a molecule?
  • What are the three common shapes of bacteria?
  • Phosphate is best described as which kind of chemical?
  • Traits altered by an individual organism during its life are called what?
  • Which component is most critical to the functioning of an ecosystem?
  • What term describes the membrane structure formed by two layers of phospholipids?
  • What is the term for the micrograph showing chromosomes arranged by size?
  • Which graph describes exponential growth patterns with no apparent limits?
  • Which of the following is an example of Tools of Science?
  • Which organelle carries substances, such as proteins, to various parts of the cell?
  • The movement of materials through a cell membrane using energy.
  • What is the group of three bases on a tRNA molecule that are complementary to an mRNA codon called?
  • What are amino acids that must be obtained from the diet because the body cannot synthesize them?
  • Which base pairs with Adenine in DNA?
  • Which term refers to a trait that helps an organism survive and reproduce?
  • Which organelle contains digestive enzymes?
  • What staining method distinguishes between two kinds of bacterial cell walls?
  • Which model is characterized by a mosaic of proteins floating in a fluid lipid bilayer?
  • Which model describes the arrangement and movement of the molecules that make up a cell membrane?
  • In chemistry, a phosphate is described as which type of chemical?
  • Which of the following pH values is considered neutral?
  • Strong competition can lead to local elimination of one species due to competition. This concept is known as?
  • What is the term for the number of individuals per unit area?
  • What is a group of organs that work together in performing vital body functions?
  • What process uses light energy to convert it into chemical energy?
  • Which cellular projection is used for movement and feeding in amoeboid cells?
  • What is the crossing of an individual of unknown genotype with a homozygous recessive individual to determine the unknown genotype?
  • Which term describes a haploid reproductive cell that unites with another to form a zygote?
  • Which RNA molecule carries amino acids to the ribosome?
  • Which process describes yeast converting sugar into carbon dioxide and alcohol?
  • Which is a classic example cited for natural selection in action?
  • Which inheritance pattern produces an offspring phenotype that is a blend of parental phenotypes?
  • Which of the following is an example of common genetic disorders?
  • Which graph shows logistic growth?
  • An internal skeleton or supporting framework in an animal is called what?
  • In a Eukaryotic cell, one of the structures in the nucleus made of DNA and protein; in a prokaryotic cell, the main ring of DNA is called what?
  • A relationship between two organisms in which one benefits and the other is unaffected is called what?
  • In an experiment, a group identical to a control group except for one factor and compared with the control group.
  • The germ layer that gives rise to muscles and most internal organs is which?
  • Which statement contrasts birth and death rates in industrialized vs non-industrialized populations?
  • Which diagram represents the number of organisms at each trophic level?
  • Angiosperms are which type of plants?
  • Which process includes transcription and translation?
  • Which term describes animals that maintain body temperature through metabolic heat?
  • Which term refers to a physiological response that allows an organism to survive in its environment?
  • Which structure makes ribosomes?
  • Which biome is defined by a mild climate with four distinct seasons and broadleaf trees?
  • Cell organelle that stores materials such as water, salts, proteins, and carbohydrates.
  • Each step in a food chain or food web is called what?
  • A relationship between two organisms in which one benefits and the other is harmed is known as?
  • A body cavity that is not completely lined by tissue derived from mesoderm is called what?
  • Porifera is the phylum of which simple animals?
  • Which biome is located near the equator with warm temperatures, abundant rainfall, and lush plant growth?
  • Which factor depends on population size?
  • The process by which a living organism becomes more mature and complex.
  • What is the principle that each living species has descended, with changes, from other species over time?
  • A chart that visually arranges all the chromosomes of an organism in homologous pairs from largest to smallest is called what?
  • An organism that obtains organic food molecules by eating other organisms or their by-products is called what?
  • Which filamentous structure forms the body of a fungus when many filaments grow together?
  • Which term best describes the property of a cell membrane that allows some substances to cross more easily than others?
  • Toward the front is called?
  • What is the universal solvent?
  • In an experiment, a group that serves as a standard of comparison with another group to which the control group is identical except for one factor.
  • A cross between two organisms that differ in two genes is called what?
  • Ferns are an example of plants with what type of vascular tissue?
  • What term describes more than two alleles for a genetic trait?
  • What is the active life cycle of a virus when it is actively replicating and spreading?
  • What term describes the process by which the DNA sequence in a gene is copied into mRNA?
  • A molecule with partial charges that readily dissolves in water is described as which?
  • What is the scientific name for birds?
  • Which of the following is NOT a common bacterial shape?
  • Which term describes a predator that removes the competitive dominant and increases community diversity?
  • Determined by the sex chromosomes; XX for female; XY for male.
  • What is the diagram called that shows the occurrence of a genetic trait in several generations of a family?
  • Which biomolecule class includes triglycerides?
  • What term describes a solution that contains less than the maximum amount of dissolved solute?
  • Viral DNA that inserts into a host genome.
  • Bacteria that stain pink with a Gram stain are referred to as?
  • What is the term for a community of organisms where there are several interrelated food chains?
  • The breakdown of the ozone layer caused by chlorofluorocarbons is known as what?
  • Which class includes bony fish?
  • Which term is used for the study of how form relates to function and evolutionary history across species?
  • What term refers to the increase in toxin concentration as you move up the food chain?
  • A revolving door through which energy passes during transfer from catabolic to anabolic pathways?
  • Which biome is characterized by deep, nutrient-rich soil that supports many grass species?
  • Which statement best describes a nucleotide?
  • Combined genetic information of all the members of a particular population is known as what?
  • Which organelle contains digestive enzymes and helps break down waste?
  • Which cell type lacks a nucleus?
  • Which term refers to energy that is available to do work?
  • KPCOFGS is an acronym for the sequence of taxonomic ranks, ordered from most inclusive to most specific. Which of the following represents that order?
  • What molecule carries the genetic message from DNA to the ribosome?
  • In an acidic solution, the number of hydronium ions is greater than hydroxide ions. This type of solution is described as?
  • What does AMP stand for?
  • Which process describes toxins becoming more concentrated in higher trophic levels?
  • Which term describes the monomer of nucleic acids made up of a five-carbon sugar, a phosphate group, and a nitrogenous base?
  • Which germ layer becomes the lining of the digestive and respiratory systems?
  • Which organelle is composed of RNA and protein; site of protein synthesis?
  • One of the alternative forms of a gene that governs a trait is called what?
  • Which topic describes the beneficial and harmful roles of bacteria in human affairs?
  • The germ layer that forms the lining of the gut and the airways is which?
  • Which molecules are typically formed from long chains of amino acids?
  • Which term names the chemical equation shown for the process of photosynthesis?
  • One of the alternative forms of a gene that governs a trait such as hair color is called what?
  • What is the three-base sequence of nucleotides in mRNA called?
  • Bacteria that stain purple with a Gram stain are referred to as?
  • A reproductive cell with a hard, protective coating
  • Which concept describes size limitations on cells due to surface area to volume ratio?
  • Which term describes bacteria that lack peptidoglycan in their cell walls?
  • Why is water often called the universal solvent?
  • Population growth that is controlled by limited resources is called what?
  • Which taxonomic rank is the most inclusive?
  • What are the threadlike structures that compose most of the fungal body?
  • What term describes an increase in the mass of an organism or an increase in cell size or number?
  • What is the process of making a copy of DNA?
  • Which term describes a trait that is influenced by more than one gene?
  • What is the smallest unit of a chemical element that retains its properties?
  • Destruction of forests is called what?
  • The solution that contains more hydroxide ions than hydronium ions describes which term?
  • What is the scientific name for reptiles?
  • Which kingdom consists of unicellular prokaryotes whose cell walls are made of peptidoglycan?
  • Which field focuses on the comparison of body structures and their variation among species?
  • Ozone depletion results in increased exposure to ultraviolet radiation at Earth's surface.
  • The movement of substances across a cell membrane without the use of energy by the cell.
  • What is the flexible rod that supports a chordate's back?
  • Which option is not a traditional kingdom in the six-kingdom system?
  • Who was the first to propose a theory of evolution?
  • Which trait is determined by a gene located on one of the sex chromosomes?
  • Which term describes an organism that is internally warmed by a heat-generating metabolic process?
  • What structure encloses and protects ovules and seeds as they develop?
  • Organisms that use light as a source of energy to synthesize organic substances are known as what?
  • What term describes a series of predictable and orderly changes within an ecosystem over time?
  • A plant grown for food.
  • Which phrase correctly defines taxonomy?
  • What concept describes the flow of genetic information from DNA to RNA to protein?
  • Which term refers to jawless fish?
  • Describe a characteristic that is influenced by many genes.
  • A limiting factor whose effect increases with population size is called a density dependent factor.
  • Body plan in which only a single imaginary line can divide the body into two equal halves.
  • Which term describes organisms that obtain energy from chemical reactions rather than from light?
  • Which biome features grasses and scattered trees adapted to a tropical wet and dry climate?
  • Which term describes animals without a backbone?
  • Organisms that use hydrogen sulfide or other chemicals as an energy source instead of light are called what?
  • Which term describes a virus that infects bacteria?
  • A subatomic particle that has no charge and that is found in the nucleus of an atom.
  • What is the thick-walled protective spore that forms inside a bacterial cell and resists harsh conditions?
  • Which type of symmetry is described as being divisible into similar parts by multiple planes through the center?
  • Gram staining differentiates between two kinds of what?
  • The middle germ layer in early development, between the endoderm and the ectoderm, is which?
  • Which word describes changes over time in living organisms?
  • Which term defines a technique that places a gene into a cell to correct a hereditary disease or to improve the genome?
  • What term describes a digestive system with a mouth at one end and an anus at the other end?
  • What is the waxy layer that covers the outer epidermal wall and prevents water loss?
  • An organism that makes its own food is called what?
  • Which biome is characterized by grasses with scattered trees adapted to a tropical wet-dry climate?
  • The first community living in a lifeless area.
  • Which law states that the pairs of homologous chromosomes separate so only one chromosome from each pair is present in each gamete?
  • The branching diagrams used to illustrate evolutionary relationships are used to describe what concept?
  • Which base is found in DNA but not in RNA?
  • Which biome is extremely cold and dry, characterized by permafrost and species such as caribou and snowy owl?
  • What is the reproductive cell that can survive harsh conditions due to a protective coating?
  • Observations that are/can be measured.
  • Which term describes the left-right mirror-image arrangement along the body?
  • What are chains of cells that make up multicellular fungi?
  • In binomial nomenclature, the second word of the scientific name denotes what?
  • Which term refers to the study of ethics related to issues that arise in health care?
  • Which molecule is adenosine monophosphate?
  • Which law states that genes separate independently of one another during meiosis?
  • Mendel's principle stating that one trait is dominant over the other recessive is known as what?
  • Which term describes bacteria that have cell walls made of peptidoglycan?
  • Which biome is a barren region with little rainfall, usually sandy and without trees?
  • Which term would a biologist use to describe the total genetic variation present in a population?
  • In nucleic acids, what term refers to the nitrogen-containing component that pairs with its complement?
  • What bonds connect amino acids to form polypeptide chains?
  • Lichens are
  • Which base pairs with Guanine in DNA?
  • The body cavity that is not completely lined by mesoderm-derived tissue is called what?
  • Belly side is called?
  • A molecule that has partial charges and tends to mix with water is described as which?
  • Which diagram is used to visualize the total energy present at each step in a food chain?
  • Which term describes a digestive system with a single opening that serves as both mouth and anus?
  • Which interaction involves one organism killing and consuming another for food?
  • Which term describes organisms that obtain energy by consuming other organisms?
  • Which term describes a characteristic that is not affected by population density?
  • A subatomic particle that has a negative charge?
  • What term describes a living or non-living carrier that transmits a pathogen between hosts (for example via water, air, or animals)?
  • Which diagram shows the amount of energy transferred from one feeding level to the next within a food web?
  • DNA is similar in species that share a common ancestor according to which field?
  • Which type of bond is responsible for the attraction between a hydrogen atom and a more electronegative atom in a molecule?
  • Breeding organisms with specific traits to produce offspring with identical traits is called what?
  • Which biome is found near the equator with warm temperatures, heavy rainfall, and lush plant growth?
  • Which term best describes a scientifically supported explanation?
  • Which component of a DNA nucleotide is a nitrogen-containing base?
  • Which term describes a tissue, organ, or organism that is made of many cells?
  • Which are the substances produced by a chemical reaction?
  • Which term describes a species with a disproportionately large effect on ecosystem structure?
  • A pore in a cell membrane through which ions can pass is called an
  • Which list represents the traditional six kingdoms in biology?
  • Cystic fibrosis and sickle cell anemia are examples of what?
  • Which phylum includes starfish and sea urchins?
  • The ability to do work is called
  • The gene-directed process by which an organism matures.
  • Which term refers to the diploid generation that produces spores by meiosis?
  • A pure substance made of only one kind of atom.
  • What is the term for one of the small bodies found in the cytoplasm that are specialized to perform a specific function?
  • Which term describes an organism that breaks down wastes and dead organisms?
  • Which group includes fish, amphibians, reptiles, birds, and mammals?
  • Which RNA molecule carries amino acids to the ribosome?
  • Which particle has no charge and is found in the nucleus?
  • Which covers the cell wall in prokaryotes?
  • Observations that use the senses.
  • A modified leaf in angiosperms that helps enclose and protect a flower bud before it opens.
  • Which term describes animals that obtain most body heat from the environment?
  • Which group produces seeds enclosed in fruits and includes most flowering plants?
  • Which term describes the struggle between organisms to survive in a habitat with limited resources?
  • What is a change in a gene or chromosome?
  • Hairlike projections that extend from the plasma membrane and are used for locomotion are called?
  • Which phylum includes insects, spiders, and crustaceans?
  • Which biomolecule group includes steroids, fats, oils, and waxes?
  • Which particle has a negative charge?
  • Which base replaces Thymine in RNA and pairs with Adenine?
  • Which biomolecule category includes DNA and RNA?
  • Which biome is characterized by very cold climates with harsh winters and is found in high latitudes near the poles?
  • Which phage life cycle replicates the phage genome without destroying the host cell?
  • What is the attraction between molecules of different substances called?
  • What is the generic term for all bacteria?
  • Which term describes the cell that results from the fusion of two gametes?
  • Which term describes an animal whose body does not produce much internal heat?
  • Which term refers to the structural polysaccharide found in many fungal cell walls and in arthropod exoskeletons?
  • Which process translates mRNA into a polypeptide?
  • Which scientists demonstrated that spontaneous generation was incorrect?
  • What is the starting material in a chemical reaction?
  • Symmetry about a central axis.
  • Amino acids are the building blocks of which biomolecule?
  • What term refers to the scale of biological organization from atoms up to populations?
  • Which fertilization process occurs outside the female's body?
  • How many traditional kingdoms are recognized in the six-kingdom system?
  • A biological community of interacting organisms and their physical environment is called what?
  • In the list of life’s classifications, which term describes an organism that makes its own food?
  • Which diagram represents the biomass in each trophic level of an ecosystem?
  • Which English naturalist formulated the theory of natural selection?
  • A mature ovary of a flower that protects dormant seeds and aids in their dispersal.
  • Which term describes a structure that has little or no use in modern organisms but persists from an ancestor?
  • Which organelle modifies, sorts, and packages proteins for secretion?
  • Which pattern describes when two or more species sharing a common ancestor become more different over time?
  • Monosaccharides, disaccharides, and polysaccharides are categories of which biomolecule?
  • What is the theorized process by which early eukaryotic cells formed from simpler prokaryotes?
  • Whiplike tails found in one-celled organisms to aid in movement are called?
  • An organelle found in plant and algae cells where photosynthesis occurs.
  • Which term describes a solution with a higher solute concentration relative to another?
  • Which organelle stores water and maintains turgor in plant cells?
  • An insecticide that is also toxic to animals and humans is known as which chemical?
  • Which term describes a reaction that requires energy input to synthesize complex molecules?
  • Which term describes organisms that obtain energy by consuming organic compounds produced by others?
  • Which group of plants produces seeds that are exposed rather than enclosed in fruits?
  • Which term describes the force exerted on an object that causes it to move?
  • Pertaining to the back is called?
  • Place where an organism lives is called what?
  • Which term is not a class within the Phylum Chordata?
  • What term describes the biological process that breaks down carbohydrates to lactic acid as the main end product?
  • Who developed the double helix model of DNA?
  • What term describes when both alleles for a gene are fully expressed?
  • Bunsen burner, petri dish, pipette, tweazers, etc.
  • Which process decodes mRNA to synthesize a protein?
  • Which field studies the anatomical similarities among embryos of different vertebrate species?
  • What is the term for a group or level of organization into which organisms are classified?
  • Which term describes a testable idea in science?
  • What molecule is represented by the formula C6H12O6?
  • Which term is used for the immediate physical and chemical surroundings of a microorganism?
  • Which term describes the small bodies that perform a function inside the cell?
  • Which skeletal type is external and typically protected by an exoskeleton?
  • What type of bond forms when two atoms share one or more pairs of electrons?
  • Single cell, microscopic organisms, EUkaryotic cells
  • What is the hypothesis stating that life could arise from nonliving matter?
  • What term describes the carrier of a pathogen, such as water, air, blood, or an animal?
  • Which term describes the belly-side orientation in anatomical terms?
  • The outer germ layer that forms skin and nervous system is which?
  • What is the widely accepted explanation of the relationship between cells and living things?
  • Which term refers to a characteristic that varies with population density?
  • What is the scientific name for mammals?
  • Competition for the needs of life is defined as what?
  • Which biome has a mild climate with four distinct seasons and broadleaf forests?
  • Which term describes a solution with the same solute concentration as another?
  • CHNOPS stands for Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, and Sulfur.
  • What type of bond is formed when electrons are transferred from one atom to another?
  • Which term means carbon-containing?
  • Which term describes organisms that derive energy from chemical sources rather than light?
  • Which process results in the evolution of organisms best adapted to the environment through differential reproduction?
  • Which term refers to a virus that integrates into the host genome and remains latent?
  • Which molecule is the main energy currency used by cells for most work?
  • Which term describes a mature, stable ecological community?
  • Which factor is most typically density-dependent in animal populations?
  • A body covering typically made of chitin that provides support and protection is called what?
  • A molecule with partial charges that can mix with water is described as which?
  • ADP is the molecule that ATP becomes when it gives up one of its three phosphate groups.
  • A state of balance between continuing processes is called
  • A difference in the concentration of a substance across a distance is known as a
  • A well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation or experiment.
  • What is the major element of organic compounds?
  • What organ surrounds and protects the developing seed within the fruit?
  • Which organelles package cellular materials and transport them within the cell or out of the cell?
  • Which phylum includes snails, clams, and octopuses?
  • Which biomolecule includes DNA and RNA?
  • Which term refers to a characteristic that increases an organism’s fitness in a particular environment?
  • Which plant group is characterized by producing seeds that are exposed on cones or naked seeds?
  • Movement of molecules from an area of higher concentration to an area of lower concentration.
  • Which term describes a range of values used to express the concentration of hydrogen ions in a solution?
  • Attaches the anther to the rest of the flower.
  • Who are credited with discovering the DNA double helix?
  • Which describes an organism that consists of a single cell?
  • Which term describes a polyhedral shape commonly found in viral capsids?
  • A subatomic particle that has a positive charge and that is found in the nucleus of an atom.
  • Which kingdom consists of unicellular prokaryotes whose cell walls do not contain peptidoglycan?
  • Which term describes the independent evolution of similar features in different lineages?
  • Which term refers to a fluid-filled body cavity lined with mesoderm?
  • Which kingdom contains multicellular eukaryotes including vertebrates and invertebrates?
  • What term describes the evolutionary history of a species?
  • What is the attraction between molecules of the same substance called?
  • Which germ layer is the outermost and gives rise to sense organs, nerves, and the outer layer of skin?
  • The female reproductive part of a flower.
  • What is the term for anything that has mass and takes up space?
  • Which particle has a positive charge and is found in the nucleus?
  • Which term names the chemical equation for photosynthesis?
  • Which term means the process of making changes in the DNA code of living organisms?
  • Which type of respiration requires oxygen?
  • What term describes the embryo of a living plant encased in a protective covering and surrounded by a food supply?
  • What is the basic unit of matter?
  • Which organelle is involved in producing and transporting proteins to various parts of the cell?
  • Which term describes not formed from living things or the remains of living things?
  • Which term describes a property of cell membranes that allows some substances to pass through, while others cannot?
  • An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
  • A stable, mature community that undergoes little or no change in species over time.
  • The steady-state physiological condition of the body.
  • Which concept explains that strong competition can lead to the local elimination of one species?
  • The variety of life in the world or in a particular habitat or ecosystem is called what?
  • Which class includes amphibians?
  • Which term describes the general geographic regions such as forests, grasslands, and deserts?
  • What is an aid used to identify organisms that consists of the answers to a series of questions?
  • What term describes a trait that is intermediate between the phenotype of the two parents because the dominant allele is unable to express itself fully?
  • The stalk of a flower's carpel, with the ovary at the base and the stigma at the top.
  • Which class includes cartilaginous fish?
  • A substance made up of atoms of two or more different elements joined by chemical bonds.
  • Which term describes the back-side orientation in anatomical terms?
  • What are the small openings on the underside of a leaf through which oxygen and carbon dioxide can move?
  • What is the term for a micrograph of the array of chromosomes visible in a cell during metaphase, arranged in homologous pairs and in order of diminishing size?
  • Which energy-based process uses chemical energy to produce carbohydrates?
  • ATP loses a phosphate group to become which molecule?
  • Which substances help build and maintain body cells and tissues?
  • Embryos of vertebrates share many anatomical homologies; this concept is studied in which field?
  • Which plant life cycle generation is haploid and gives rise to a new plant after mitosis?
  • A cellular extension of amoeboid cells used in moving and feeding is called?
  • A structural polysaccharide found in many fungal cell walls and in the exoskeletons of arthropods.
  • Which term describes a trait controlled by genes on the sex chromosomes?
  • What structure forms inside a bacterial cell to survive harsh conditions?
  • Which term describes the evolution of different species from a common ancestor leading to differences among lineages?
  • Which term describes the set of processes by which genetic information flows from DNA to RNA to protein?
  • Which term encompasses reproduction, metabolism, heredity, and adaptation through evolution?
  • What is the pH of a neutral solution?
  • Which term describes a reaction that absorbs free energy from its surroundings?
  • Which generation is multicellular, haploid, and produces haploid gametes by mitosis?
  • What term describes the duplicated chromosomes that still contain identical genetic material before separation?
  • Having the same solute concentration as another solution is described as
  • The class name for mammals is what?
  • The principle that two species competing for the same limiting resource cannot coexist indefinitely is known as what?
  • The triplet of nucleotides in mRNA that specifies an amino acid is called what?
  • What term describes the five-carbon sugar component of nucleotides?
  • What color do Gram-positive bacteria stain with the Gram stain?
  • Which term describes large terrestrial regions of the earth with distinct climate and characteristic species?
  • Organisms that use hydrogen sulfide or other chemicals as energy source instead of light are known as?
  • Which term refers to maintaining stable internal conditions in an organism?
  • Movement of specific molecules across cell membranes through protein channels.
  • What term describes the five-carbon sugar present in nucleotides?
  • The removal of forests leading to habitat loss is called what?
  • A mass of hyphae
  • Which term describes a stable, mature community with little change?
  • Which term is used for a population characteristic that is not affected by population density?
  • What term describes a substance made up of two or more elements bonded together?
  • Two identical chromosomes that split and contain the same genetic material.
  • Which process refers to the movement of substances across a cell membrane without using energy by the cell?
  • What is a series of steps in which organisms transfer energy by eating and being eaten?
  • What naming system uses a two-part scientific name for each species?
  • What are the building blocks of proteins?
  • What are hollow tubes used to move cells or exchange DNA between bacteria by conjugation?
  • Which term describes a reaction that releases free energy?
  • What is produced by meiosis in the plant life cycle and grows into haploid organisms by mitosis?
  • Which term describes the difference in solute concentration across a distance?
  • Which term describes organisms that use light as their energy source to synthesize organic substances?
  • Which base pairs with cytosine in DNA?
  • A relationship in which both species benefit is called?
  • Which term describes the independent evolution of similar traits in unrelated lineages due to similar environments?
  • The immediate physical and chemical surroundings of a microorganism.
  • What term describes the first community to occupy a lifeless area?
  • Which term best describes single-celled, microscopic organisms with eukaryotic cells?
  • Which type of limiting factor affects all populations in similar ways, regardless of their size?
  • The movement of water across selectively permeable membranes.
  • Having a higher concentration of solute than another solution is described as
  • A cross between individuals that have different alleles for two genes is called what?
  • Which term best describes the energy transfer process from catabolic to anabolic pathways in cells?
  • Which term describes a trait influenced by many genes?
  • Thymine always pairs with Adenine, and Cytosine always pairs with Guanine.
  • Which fertilization process occurs inside the female's body?
  • Having a lower concentration of solute than another solution is described as
  • A cross between individuals that involves one pair of contrasting traits is known as what?
  • Which organelle is the site of photosynthesis in plant cells?
  • If two species compete for the same limiting resource, what outcome can occur?
  • The class name for birds is what?
  • Area where the chromatids of a chromosome are attached.
  • What are the building blocks of proteins?
  • Which term describes the deliberate modification of an organism's genome to achieve desired traits?
  • What are groups of similar cells that act as a functional unit?
  • What is the region where sister chromatids are held together before they separate during cell division?
  • Which term refers to the protective coating that can cover the cell wall in some bacteria?
  • Limiting factor that depends on population size.
  • DDT is an insecticide that is toxic to animals and humans. Which pesticide is DDT?
  • Toward the back is called?
  • Which scientist is associated with the concept of inheritance of acquired characteristics?
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy