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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 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.






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






3. Is the organelle where cellular reproductive processes occur.






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






5. Algae and Protozoa belong to the kingdom...






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






7. Are the organelles where cellular respiration occurs.






8. Contains organisms that are multicellular eukaryotes including molds and mushrooms.






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






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






11. The sharp boundary of an ecosystem.






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






13. Niche






14. 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.






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






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






17. 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.






18. Veins in the leaf and are also distributed throughout the stem






19. 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.






20. The phylum of insects (bees).






21. Contains optic lobes - controls sight.






22. Digestive enzymes - hydrochloric acid - and gastric juices which aid in digestion. The mucous secreted by the stomach protects the stomach lining from the acids and juices.






23. Can be accounted for by the theory of punctuated equilibrium. The fossil record shows periods of stability with regard to appearance and disappearance of species as well as periods of sudden change.






24. 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.






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






26. Is comprised of all the organisms that interact within a given ecosystem whether or not it is at carrying capacity.






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






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






29. Synthesis






30. In DNA Thymine pairs with...






31. 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.






32. Engages in both passive and active transport.






33. In both living and non-living environments.






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






35. The transfer of electrons.






36. 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.






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






38. Disease causing






39. Is the control of protein synthesis. Genetic traits are expressed and specialization of cells occur as a result of the combination of proteins produced by the DNA of a cell.






40. The class composed of birds.






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






42. Breaking down






43. Carbon - nitrogen - phosphorous - and water. These are all recycled through biogeochemical processes.






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






45. Respiratory organs within insects






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

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






48. Is a special protein that acts as a catalyst for organic reactions.






49. Controls balance and muscle coordination






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