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






2. In DNA Thymine pairs with...






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






4. 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






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






6. The individual we recognize as an adult fern.






7. Is found on the stem between nodes.






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






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






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






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






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






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






15. Is composed of a double layer (bilayer) of phospholipids with protein globules imbedded within the layers. The construction of the membrane allows it to aid the function of the cell by permitting entrance and exit of molecules as needed by the cell.






16. The sharp boundary of an ecosystem.






17. Are more closely related to Homo Sapiens than to other apes - but Homo Sapiens did not evolve from chimpanzees.






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






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






20. Controls hunger and thirst






21. Contains optic lobes - controls sight.






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






23. The destruction of gametes - (sex cells such as sperm and eggs).






24. Covers and protects the leaf.






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






26. Is a kingdom that includes algae and protozoa.






27. Contain organisms that are multicellular eukaryotes including vertebrates and invertebrates.






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






29. In both living and non-living environments.






30. Super-class of vertebrae including organisms with jaws.






31. Process of breaking down complex materials (foods) to form simpler substances and release energy.






32. 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.






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






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






35. When the water concentration inside and outside the cell is equal - It is said to be in an...






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






37. 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.






38. Small - green - heart-shaped gametophyte plant form of a fern that can make its own food and absorb water and nutrients from the soil






39. Super-class of vertebrae including organisms with no jaws.






40. Is the earliest period of the Paleozoic era. Began with the Cambrian explosion - this explosion of life resulted in the representatives of most of the modern phyla being present.






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






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






43. Is disorganized - unravelled - DNA with histones attached.






44. 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






45. Controls olfactory lobes (smell)






46. The preservation of the integrity of genetic information from one generation to another.






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






48. Niche






49. Decomposition of living matter for consumption.






50. The class composed of birds.