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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. Is disorganized - unravelled - DNA with histones attached.






2. Respiratory organs within insects






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






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






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






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






7. The class composed of birds.






8. What phylum are snakes in?






9. Is found in the root cap and is responsible for quick growth in the roots.






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. Subsets below the kingdom level






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






13. In DNA Thymine pairs with...






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






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






16. In both living and non-living environments.






17. 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






18. 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.






19. High temperatures






20. Is more like branching out of a tree with dead ends and new branches appearing simultaneously than like steps on a ladder.






21. 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






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






23. 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.






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






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






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






27. Protein synthesis






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






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






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






31. The cells of a developing embryo (at the gastrula stage) differentiate into layers - that will later develop into different tissues and organs - including the mesoderm - ectoderm - and endoderm.






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






33. Covers and protects the leaf.






34. The sharp boundary of an ecosystem.






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






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






37. 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






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






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






40. The phyla composed of segmented worms.






41. An orienting response to light.






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






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






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






45. Internally generated patterns of body functions - including hormonal signals - sleep - blood pressure - and temperature regulation - which have approximately a 24-hour cycle and occur even in the absence of normal cues about whether it is day or nigh






46. An enzyme is unaffected by the reactions it catalyzes






47. Produces the most ATP molecules - yielding 34 ATPs per glucose molecule.






48. 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.






49. The phyla of sponges.






50. The pituitary gland.