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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. What phylum are snakes in?






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






3. Carbon - Hydrogen - Oxygen - and Nitrogen






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






5. Provide rigidity to plant cells (and some bacteria) and are not found within animal cells.






6. Refers to the birthrate of a population.






7. Is a phylum that contains sponges.






8. Small - green - heart-shaped gametophyte plant form of a fern that can make its own food and absorb water and nutrients from the soil






9. The part of the earth that contains all living things - including the atmosphere (air) - the lithosphere (earth) - and the hydrosphere (water).






10. Anabolism






11. Are tubes constructed of a geometrical arrangement of microtubules in a pinwheel shape. Their function includes the formation of new microtubules - but is primarily to form the structural skeleton around which cells split during mitosis and meiosis.






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






13. Contains multicellular photosynthetic eukaryotic organisms including gymnosperms and angiosperms.






14. Is comprised of all the organisms that interact within a given ecosystem whether or not it is at carrying capacity.






15. Bacteria break ammonia into nitrites - then into nitrates that are usable by plants; volcanic activity produces ammonia and nitrates that enter the soil and can be absorbed by plants; lightning reacts with atmospheric nitrogen to form nitrates that a






16. Sex-linked recessive disorder carried on the x chromosome defined by the absence of one or more proteins required for blood clotting






17. The trachea includes the windpipe or larynx in its upper portion - and the glottis - an opening that allows the gases to pass into the two branches known as the bronchi.






18. Process in which elements - chemical compounds - and other forms of matter are passed from one organism to another and from one part of the biosphere to another.






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






20. The role played by an organism in its food chain.






21. Is the sugar that lactase acts upon.






22. The phylum of insects (bees).






23. The process whereby cells build molecules and store energy (in the form of covalent chemical bonds).






24. Algae and Protozoa belong to the kingdom...






25. Cleave strands of DNA segments at certain sites.






26. Produce seeds without flowers. They include conifers (cone-bearers) and cycads.






27. The lineage that led to the modern Homo Sapiens diverged from the lineage that led to the modern chimpanzee.






28. Is the number of organisms that can be supported within a particular ecosystem.






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






30. An enzyme is unaffected by the reactions it catalyzes






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






32. An orienting response to light.






33. Are where the sugars synthesized by photosynthesis travel through to various parts of the plant.






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






35. Contains many genes and is a structure comprised of linear DNA and associated proteins.






36. The cells of a developing embryo (at the gastrula stage) differentiate into layers - that will later develop into different tissues and organs - including the mesoderm - ectoderm - and endoderm.






37. Approximately 7 - making it neither basic (under 7) nor alkaline (over 7).






38. Is a behavior that is learned during a critical point (often very early) in an individual's life. Imprinting enables the young the recognize members of their own species.






39. 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.






40. 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






41. 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.






42. Is a compound fruit that develops from many ovaries of a single flower fusing together (raspberry).






43. Synthesis






44. 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.






45. The pituitary gland.






46. Biotic (living) factors such as population and food source - and abiotic (non-living) factors such as weather - temperature - soil features - sunlight).






47. Enzymes are usually __________ to certain reactions.






48. In DNA Guanine pairs with...






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






50. Is an abundant element found in protoplasm. Together with oxygen - hydrogen - and nitrogen - it composes over 90% of cellular structure.