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CLEP Biology

Subjects : clep, science, biology
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The pharynx is between the nasal passage and the trachea. Air passes into the body via the nasal passage - then passes through the pharynx and on to the trachea.






2. Is the outermost of the three main layers of an embryo.






3. Is an accidental change of the DNA sequence of the gene that can result in creating a change of trait that is not found in the parent.






4. Is an ion that binds to an enzyme making it more able to catalyze a reaction.






5. This is a carboxyl group and is the signature group found within organic acids.






6. An opportunistic life strategy strategy. Lichens invading a bare rock area after a volcanic eruption is an example.






7. Contains the chromosomes and is the site of reproduction through mitosis and meiosis.






8. Is weaker than ionic - covalent - disulfide - or double bonds.






9. A suffix meaning 'to break apart.' O || ||






10. What phylum are snakes in?






11. Proposes that those individuals within a population that are most adapted to the environment are also the most likely individuals to produce viable offspring.






12. Is a protein - which is a polymer of amino acids. They generally have the suffix -ase- like lactase.






13. Is a kind of plain characterized by a warm climate - grassland - and seasonally dry climate conditions.






14. A reaction that adds water to another compound. (2 hydrogens - 1 oxygen).






15. An enzyme is unaffected by the reactions it catalyzes






16. Is the earliest period of the Paleozoic era. Began with the Cambrian explosion - this explosion of life resulted in the representatives of most of the modern phyla being present.






17. Controls sensory and motor responses - and controls memory - speech - and intelligence factors.






18. Mass extinctions promote diversification because _______________ - making conditions favorable for the establishment of new - diverse species.






19. Contain organisms that are multicellular eukaryotes including vertebrates and invertebrates.






20. Are produced when water passes through the cell membrane by osmosis from an area of higher concentration to an area of lower concentration - to equalize water concentration.






21. May be ions or non-protein molecules - they are similar to cofactors - but differ in that they are tightly attached by covalent bonds to the enzyme - rather than being separate atoms or molecules.






22. Is when expression of genetic traits is determined by weather the trait is inherited from the mother or the father.






23. Is found in the root cap and is responsible for quick growth in the roots.






24. Between the endoderm and ectoderm - layer that will eventually form the muscles - and organs of the skeletal - circulatory - respiratory - reproductive - and excretory systems.






25. Is secreted by the adrenal cortex to promote sodium reabsorption in the kidney.






26. All store energy within their chemical bonds.






27. Refers to the birthrate of a population.






28. Is a phylum that contains sponges.






29. Are organic cofactors or coenzymes that are required by some enzymatic reactions.






30. Absorb a photon of light and is found in the grana of the chloroplast.






31. A sex-linked recessive disorder carried on the x chromosome in which an individual cannot perceive certain colors.






32. The class composed of birds.






33. In DNA Guanine pairs with...






34. Has extreme hot or cold temperatures - with very low precipitation - sandy or rocky terrain - sparse vegetation (mainly succulents) - small animals - rodents - and reptiles.






35. The phyla of sponges.






36. The systematic search for individuals with a specific genotype in a delineated population.






37. Is a special protein that acts as a catalyst for organic reactions.






38. Are cells involved in immunity and are produced in bone marrow as stem cells.






39. The physical place where a particular organism lives. It must include all the factors that will support its life and reproduction.






40. Is a molecule that stores information for protein synthesis and genetic coding.






41. Developed by the German scientists Schleiden and Schwann - States that all living things are made of cells - cells are the basic units of life - all cells come from pre-existing cells.






42. States that where random mating is occurring within a population that is in equilibrium with its environment - the gene frequencies and genotype ratios will remain constant from generation to generation. It is a mathematical formula that shows why re






43. Some patrol the blood for antigens - but are also equipped to destroy antigens. They may regulate immune responses as well.






44. The number of organisms in a given community - can be above or below the carrying capacity.






45. Contains organisms that are multicellular eukaryotes including molds and mushrooms.






46. Are membrane-bound organelles that contain digestive enzymes that digest dead or unused material within the cell or materials absorbed by the cell for use.






47. In DNA Thymine pairs with...






48. Is composed of an anterior and posterior lobe. The stalk of the lobe is connected to the hypothalamus. Antidiuretic Hormone (AH) is produced in the hypothalamus and stored in the posterior pituitary. Upon nervous stimulation from the hypothalamus - t






49. A type of innate behavior (instinct.) The FAP is a preprogrammed response to a particular stimulus (known as a releaser stimulus). FAP's include courtship behaviors and feeding of young. These are not learned behaviors - they are automatically perfor






50. Subsets below the kingdom level