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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. Is very rare and is not absorbed by plant leaves. Phosphorous is nearly always found in solid form.






2. 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






3. Are surrounded by capillaries that allow for carbon dioxide to diffuse into the lungs and oxygen to diffuse out.






4. The phylum of insects (bees).






5. Super-class of vertebrae including organisms with no jaws.






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






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






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






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






10. Plants and animals obtain usable nitrogen






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






12. Digestive enzymes - hydrochloric acid - and gastric juices which aid in digestion. The mucous secreted by the stomach protects the stomach lining from the acids and juices.






13. Enzymes are usually __________ to certain reactions.






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






15. Nonvascular plants such as mosses which lack tissue for conducting food or water.






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






17. 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.






18. Fossilized burrows from multicellular organisms begin to appear in the geological record approximately 700 million years ago during the Precambrian period. These multicellular animals had only soft parts and could not be fossilized.






19. Synthesis






20. Mitochondria - they constitute the center of cellular respiration.

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21. The most recent and present era. It includes the radiation of flowering plants - the angiosperms.






22. 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.






23. Occurs when an individual learns not to respond to a particular stimulus - for instance when a stimulus is repeated many times without consequence.






24. The vocal cords are found in the larynx.






25. Secretes insulin to lower blood sugar and maintain equilibrium. A person eats three candy bars. Within minutes this endocrine gland affects blood-glucose homeostasis.






26. Decomposition of living matter for consumption.






27. Contain one celled eukaryotes such as algae and protozoa.






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






29. 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.






30. Is the sugar that lactase acts upon.






31. Transparency - polarity - high specific heat - and density (lower density when solid than when liquid.).






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






33. Is the organelle where cellular reproductive processes occur.






34. Controls olfactory lobes (smell)






35. Is the period when the cell is active in carrying on the function it was designed to perform within the organism. Cells spend much more time in interphase than in cell division.






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






37. Is a compound fruit that forms from several ovaries of separate flowers that fuse together during ripening (strawberry - or pineapple).






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






39. Occurs when two populations are geographically isolated from each other. Over time this results in the production of two separate species.






40. Is a social behavior of an organism that is beneficial to the group at the individual's expense.






41. 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






42. Occurs when an individual from an adjacent population of the same species immigrates and breeds with a member of a previously locally isolated group - resulting in a change in the gene pool.






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






44. Has an equal (50%) chance of being passed from a carrier mother to a son or a daughter.






45. The pituitary gland.






46. Becomes available for erosion as undersea sedimentary rocks are up-thrust by volcanic activity - erosion releases it from rocks into streams where it combines with oxygen to form phosphates in lakes that are then absorbed by plants - it is recycled t






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






48. 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.






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






50. Subsets below the kingdom level