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






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






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






4. Allows for the genetic code to be preserved in future generations of cells.






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






6. All store energy within their chemical bonds.






7. The individual we recognize as an adult fern.






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






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






10. This is a carboxyl group and is the signature group found within organic acids.






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






12. Cleave strands of DNA segments at certain sites.






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






14. In DNA Guanine pairs with...






15. Refers to the birthrate of a population.






16. 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






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






18. 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.






19. High temperatures






20. What phylum are snakes in?






21. A sex-linked recessive disorder carried on the x chromosome in which an individual cannot perceive certain colors.






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






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

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






25. The class composed of birds.






26. Contains multicellular photosynthetic eukaryotic organisms including gymnosperms and angiosperms.






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






28. Studied the relationships between traits expressed in parents and offspring and the genes that caused the traits to be expressed.






29. 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.






30. The large brain and upright posture of Homo Sapiens...






31. Is very rare and is not absorbed by plant leaves. Phosphorous is nearly always found in solid form.






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






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






34. 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.






35. Contains many genes and is a structure comprised of linear DNA and associated proteins.






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






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






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






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






40. Contain one celled eukaryotes such as algae and protozoa.






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






42. Most chemical pollutants accidentally ingested by humans are __________ - mixed with broken down pigments in the bile - then bile is secreted into the small intestine - proceeds to the large intestine - and is expelled in the feces.






43. Are surrounded by capillaries that allow for carbon dioxide to diffuse into the lungs and oxygen to diffuse out.






44. Are tubes constructed of a geometrical arrangement of microtubules in a pinwheel shape. Their function includes the formation of new microtubules - but is primarily to form the structural skeleton around which cells split during mitosis and meiosis.






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






46. 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.






47. The pituitary gland.






48. Decomposition of living matter for consumption.






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






50. Is found on the stem between nodes.