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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. High temperatures






2. 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.






3. 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.






4. The size of a cell is limited by the ratio of its surface area to volume.






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






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






7. Include: Vascular tissue - including both xylem and phloem - and sieve plates existing between cells of the stem.






8. Has loosely packed cells that allow for gas and moisture exchange.






9. The destruction of gametes - (sex cells such as sperm and eggs).






10. The phyla of round worms.






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






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






13. The transfer of electrons.






14. Is a phylum that contains sponges.






15. Internally generated patterns of body functions - including hormonal signals - sleep - blood pressure - and temperature regulation - which have approximately a 24-hour cycle and occur even in the absence of normal cues about whether it is day or nigh






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






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






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






19. (of some plants or fungi) feeding on dead or decaying organic matter






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






21. The phylum of insects (bees).






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






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. Is the waxy protective outer coating of leaves.






25. Most fossils of Hominids are from continents other than...






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






27. Layer that will become the gut lining as well as some accessory structures.






28. Is the organelle where cellular reproductive processes occur.






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






30. The process of forming eggs and sperm cells in the reproductive organs.






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






32. Produces the most ATP molecules - yielding 34 ATPs per glucose molecule.






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






34. Is the sugar that lactase acts upon.






35. Channels is cell membranes that carry water between cells.






36. Is disorganized - unravelled - DNA with histones attached.






37. In order to become an established part of an island ecosystem there must be a populations large enough to ensure _________ - a food source - a suitable habitat - and a source of moisture.






38. Is a kingdom that includes algae and protozoa.






39. Can be accounted for by the theory of punctuated equilibrium. The fossil record shows periods of stability with regard to appearance and disappearance of species as well as periods of sudden change.






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






41. It secretes saliva which enters the digestive tract and aids the digestive process.






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






43. The sharp boundary of an ecosystem.






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






45. 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






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






47. All store energy within their chemical bonds.






48. A cell will only remain stable if the surface area of the plasma membrane maintains a __________ with the volume of the cytoplasm.






49. Is the outermost layer of cells of the stem.






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