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






2. The class composed of birds.






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






4. Is found on the stem between nodes.






5. 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).






6. Is a disease caused by lack of vitamin C in which the body is unable to build enough collagen (a major component of connective tissue).






7. 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.






8. 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.






9. Is the sugar that lactase acts upon.






10. Inorganic phosphate






11. Carbon - Hydrogen - Oxygen - and Nitrogen






12. Ended with the extinction of the dinosaurs.






13. Is the major component of sand and is the most abundant element found in the lithosphere. It is not recycled.






14. Controls balance and muscle coordination






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






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






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






18. In both living and non-living environments.






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






20. Assumes that there are periods of stability during which little evolutionary change occurs - and that speciation can occur rapidly over a very short period of time.






21. High temperatures






22. The sharp boundary of an ecosystem.






23. 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






24. The phyla of sponges.






25. Chlorophyll pigments absorb photons of light - leaving the chlorophyll in a higher energy (excited) state - these then supply energy to reactions that produce ATP from ADP and Pi.






26. Develops from the morula as a thin layer of cells surrounding an internal cavity.






27. Allows for the genetic code to be preserved in future generations of cells.






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






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






30. 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.






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






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






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






34. An orienting response to light.






35. Carbon - nitrogen - phosphorous - and water. These are all recycled through biogeochemical processes.






36. 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.






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






38. Is the organelle where cellular reproductive processes occur.






39. The large brain and upright posture of Homo Sapiens...






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






41. 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.






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






43. An enzyme is unaffected by the reactions it catalyzes






44. Where protein synthesis occurs. They float unattached in the cytoplasm. They contain RNA that is specific to their function in protein formation.






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






46. Breaking down






47. The phyla of round worms.






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






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






50. Decomposition of living matter for consumption.