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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. Covers and protects the leaf.






2. Is a kingdom that includes algae and protozoa.






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






4. 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






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






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






7. Niche






8. Energy transformations that occur as chemicals are broken down or synthesized within the cell.






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






10. Most chemical pollutants accidentally ingested by humans are __________ - mixed with broken down pigments in the bile - then bile is secreted into the small intestine - proceeds to the large intestine - and is expelled in the feces.






11. 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.






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






13. Must be present for photosynthesis to occur - it is not used up in the process.






14. Is the sugar that lactase acts upon.






15. All store energy within their chemical bonds.






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






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






18. Enzymes are usually __________ to certain reactions.






19. Plants and animals obtain usable nitrogen






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






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






22. Carbon - Hydrogen - Oxygen - and Nitrogen






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






24. The individual we recognize as an adult fern.






25. When the water concentration inside and outside the cell is equal - It is said to be in an...






26. Consists of undifferentiated cells capable of quick growth and specialization. It is responsible for elongation of the stem.






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






28. The pituitary gland.






29. In DNA Thymine pairs with...






30. Is made of stacked cells connected by sieve plates that allow nutrients to pass from cell to cell. They transport food made in the leaves (by photosynthesis) to the rest of the plant).






31. Subsets below the kingdom level






32. The sharp boundary of an ecosystem.






33. Layer that will become the skin - some endocrine glands - and the nervous system.






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. Is the process that releases energy for use by the cell.






36. Refers to the birthrate of a population.






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






38. Transfers water and does not require sieve plates to allow nutrients through.






39. 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.






40. Controls olfactory lobes (smell)






41. Is composed of a double layer (bilayer) of phospholipids with protein globules imbedded within the layers. The construction of the membrane allows it to aid the function of the cell by permitting entrance and exit of molecules as needed by the cell.






42. 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






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






44. Are formed when the plasma membrane of a cell encloses a molecule outside the membrane - then releases a membrane bound sack containing the desired molecule into the cytoplasm. This process allows the cell to absorb molecules that are larger in size






45. Decomposition of living matter for consumption.






46. 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






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






48. 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.






49. Controls hunger and thirst






50. Are the monomers that form nucleic acids - containing a sugar - phosphate group - and a nitrogenous base.