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






2. 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.






3. The phyla of sponges.






4. 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.






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






6. 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.






7. Process in which elements - chemical compounds - and other forms of matter are passed from one organism to another and from one part of the biosphere to another.






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






9. Is the outermost layer of cells of the stem.






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






11. Contains optic lobes - controls sight.






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






13. 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.






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






15. 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.






16. Niche






17. Disease causing






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






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






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






21. 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.






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






23. In DNA Thymine pairs with...






24. 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).






25. Is a compound fruit that forms from several ovaries of separate flowers that fuse together during ripening (strawberry - or pineapple).






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






27. The pituitary gland.






28. Is the waxy protective outer coating of leaves.






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






30. Controls balance and muscle coordination






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






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






33. Decomposition of living matter for consumption.






34. Is an ion that binds to an enzyme making it more able to catalyze a reaction.






35. The class composed of birds.






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






37. Are the organelles where cellular respiration occurs.






38. 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






39. 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.






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






41. A suffix meaning 'to break apart.' O || ||






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






43. The phyla of round worms.






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






45. Approximately 7 - making it neither basic (under 7) nor alkaline (over 7).






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






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






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






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






50. The process whereby cells build molecules and store energy (in the form of covalent chemical bonds).