Test your basic knowledge |

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. Is the sugar that lactase acts upon.






2. Biotic (living) factors such as population and food source - and abiotic (non-living) factors such as weather - temperature - soil features - sunlight).






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






4. Carbon - Hydrogen - Oxygen - and Nitrogen






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






6. The individual we recognize as an adult fern.






7. 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.






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






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






10. 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






11. 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.






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






13. A length of DNA (with corresponding histones) is responsible for the production of a certain protein that causes a particular trait to be expressed in an organism.






14. 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.






15. Is found on the stem between nodes.






16. 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






17. Engages in both passive and active transport.






18. Are the organelles where cellular respiration occurs.






19. 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






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






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






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






23. The phyla of sponges.






24. Produce antibodies into the bloodstream that find and attach themselves to foreign antigens (toxins - bacteria).






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






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. Is the outermost layer of cells of the stem.






28. Are membrane-bound organelles that contain digestive enzymes that digest dead or unused material within the cell or materials absorbed by the cell for use.






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






30. 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.






31. 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.






32. The class composed of birds.






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






34. 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.






35. Contains the chromosomes and is the site of reproduction through mitosis and meiosis.






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






37. The solid mass of cells resulting from the cleavage of the ovum before the formation of a blastula.






38. An enzyme is unaffected by the reactions it catalyzes






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






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






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






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






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






45. 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






46. Disease causing






47. Is a packet of digestive enzymes that destroy cellular wastes.






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






49. The vocal cords are found in the larynx.






50. 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).