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






2. A hydrogen bond involves the ________________ and can be easily broken.






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






4. Occurs when two populations are geographically isolated from each other. Over time this results in the production of two separate species.






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






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






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






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






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






10. 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






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






12. 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.






13. Covers and protects the leaf.






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






15. 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).






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






17. In DNA Guanine pairs with...






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






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






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






21. Stood upright before there was an increase in brain size.






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






23. 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.






24. Enzymes are usually __________ to certain reactions.






25. When stems bend toward the light it is due to _____________ the hormone auxin - in response to light - migrates from the light to the dark side of the shoot tip. The cells on the dark side now contain more auxin - which causes the cells on that side






26. Produce seeds without flowers. They include conifers (cone-bearers) and cycads.






27. Subsets below the kingdom level






28. Is the period when the cell is active in carrying on the function it was designed to perform within the organism. Cells spend much more time in interphase than in cell division.






29. An enzyme is unaffected by the reactions it catalyzes






30. 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.






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






32. 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.






33. Is the organelle where cellular reproductive processes occur.






34. Some enzymes contain a __________ component that is essential to their functions.






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






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






37. High temperatures






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






39. The effect of a substrate concentration on the initial reaction rate in the presence of a limited amount of enzyme: _________________ as the concentration of substrate is increased until all the enzymes are used - then the reaction rate will level of






40. Ended with the extinction of the dinosaurs.






41. Studied the relationships between traits expressed in parents and offspring and the genes that caused the traits to be expressed.






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

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43. Some energy is lost as heat and becomes unusable.






44. Controls balance and muscle coordination






45. Contains optic lobes - controls sight.






46. Are more closely related to Homo Sapiens than to other apes - but Homo Sapiens did not evolve from chimpanzees.






47. Is found on the stem between nodes.






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






49. Is when expression of genetic traits is determined by weather the trait is inherited from the mother or the father.






50. Is composed of an anterior and posterior lobe. The stalk of the lobe is connected to the hypothalamus. Antidiuretic Hormone (AH) is produced in the hypothalamus and stored in the posterior pituitary. Upon nervous stimulation from the hypothalamus - t