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






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






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






4. 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






5. The phyla of round worms.






6. Is a substance that changes the speed of a reaction without being affected itself.






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






8. Is the organelle where cellular reproductive processes occur.






9. Produce adrenaline. This hormone is a well-known constrictor of blood vessels.






10. Is a phylum that contains jellyfish - hydra - etc.






11. 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.






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






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






14. The bronchi lead to the two lungs where they branch out in all directions into smaller tubules known as bronchioles.






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


16. The part of the earth that contains all living things - including the atmosphere (air) - the lithosphere (earth) - and the hydrosphere (water).






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






18. Engages in both passive and active transport.






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






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






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






22. Is weaker than ionic - covalent - disulfide - or double bonds.






23. Are the organelles where cellular respiration occurs.






24. Is the sugar that lactase acts upon.






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






26. Disease causing






27. The pharynx is between the nasal passage and the trachea. Air passes into the body via the nasal passage - then passes through the pharynx and on to the trachea.






28. Between the endoderm and ectoderm - layer that will eventually form the muscles - and organs of the skeletal - circulatory - respiratory - reproductive - and excretory systems.






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






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






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






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






33. Is the waxy protective outer coating of leaves.






34. 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).






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






36. The phyla composed of segmented worms.






37. An enzyme is unaffected by the reactions it catalyzes






38. Plants and animals obtain usable nitrogen






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






40. Is the earliest period of the Paleozoic era. Began with the Cambrian explosion - this explosion of life resulted in the representatives of most of the modern phyla being present.






41. Attaches to an enzyme and blocks the enzyme reaction rather than enhancing it - like a prosthetic group would.






42. 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.






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






44. 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






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. 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.






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






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






49. Anabolism






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