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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. 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






2. Has extreme cold temperatures - low precipitation - modified grassland - perma-frost - a short growing season and some plants and animals.






3. Is the control of protein synthesis. Genetic traits are expressed and specialization of cells occur as a result of the combination of proteins produced by the DNA of a cell.






4. An enzyme is unaffected by the reactions it catalyzes






5. The vocal cords are found in the larynx.






6. Process of breaking down complex materials (foods) to form simpler substances and release energy.






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






8. Ended with the extinction of the dinosaurs.






9. 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.






10. Includes all living and nonliving components of the Earth to support living things.






11. 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).






12. The pituitary gland.






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






14. 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.






15. 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.






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






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






18. The phylum of insects (bees).






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






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






21. Is a coenzyme required in the synthesis of collagen.






22. 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






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






24. There was extensive radiation of fish during the Devonian and Silurian periods within the Paleozoic Era.






25. The phyla composed of segmented worms.






26. 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.






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






28. Disease causing






29. The sharp boundary of an ecosystem.






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






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






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






33. The phyla of round worms.






34. Enzymes are usually __________ to certain reactions.






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






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






37. Subsets below the kingdom level






38. Anabolism






39. 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.






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






41. Controls balance and muscle coordination






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. Is the waxy protective outer coating of leaves.






44. Breaking down






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






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






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






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






49. 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.






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







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