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






2. Engages in both passive and active transport.






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






4. Breaking down






5. Covers and protects the leaf.






6. 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).






7. Is a kingdom that includes algae and protozoa.






8. Is the organelle where cellular reproductive processes occur.






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






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






11. 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






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






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






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






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






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






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






18. 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.






19. Where protein synthesis occurs. They float unattached in the cytoplasm. They contain RNA that is specific to their function in protein formation.






20. High temperatures






21. Anabolism






22. The vocal cords are found in the larynx.






23. 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.






24. The individual we recognize as an adult fern.






25. Protein synthesis






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






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






28. Is a molecule that stores information for protein synthesis and genetic coding.






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






30. Has extreme hot or cold temperatures - with very low precipitation - sandy or rocky terrain - sparse vegetation (mainly succulents) - small animals - rodents - and reptiles.






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






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






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






34. Carbon - Hydrogen - Oxygen - and Nitrogen






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






36. Plants that produce flowers as reproductive organs. They have two divisions - monocots and dicots.






37. 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.






38. 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.






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






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

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






42. 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.






43. 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.






44. 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.






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






46. In DNA Guanine pairs with...






47. Layer that will become the gut lining as well as some accessory structures.






48. 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.






49. Is a protein - which is a polymer of amino acids. They generally have the suffix -ase- like lactase.






50. 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







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