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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. Are cells involved in immunity and are produced in bone marrow as stem cells.






2. Include: Vascular tissue - including both xylem and phloem - and sieve plates existing between cells of the stem.






3. 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






4. Breaking down






5. 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.






6. Fruits that develop from a single ripened ovary (apple - olive - acorn - cucumber).






7. Are easily converted to ATP - but the main energy products of the Krebs cycle liberate electrons then used in the electron transfer reactions.






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






9. 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






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






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






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






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






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

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






16. The phylum of insects (bees).






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






18. Carbon - Hydrogen - Oxygen - and Nitrogen






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






20. 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.






21. Protein synthesis






22. Contains optic lobes - controls sight.






23. 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.






24. Veins in the leaf and are also distributed throughout the stem






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






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






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






28. The vocal cords are found in the larynx.






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






30. Ended with the extinction of the dinosaurs.






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






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






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






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






35. Some patrol the blood for antigens - but are also equipped to destroy antigens. They may regulate immune responses as well.






36. Transfers water and does not require sieve plates to allow nutrients through.






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






38. Is a compound fruit that develops from many ovaries of a single flower fusing together (raspberry).






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






40. Are the organelles where cellular respiration occurs.






41. The trachea includes the windpipe or larynx in its upper portion - and the glottis - an opening that allows the gases to pass into the two branches known as the bronchi.






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






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






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






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






46. The total amount of genetic information available for a given species.






47. Is the number of organisms that can be supported within a particular ecosystem.






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






49. Absorb a photon of light and is found in the grana of the chloroplast.






50. Synthesis







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