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






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






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






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






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






6. Controls hunger and thirst






7. Is a kind of plain characterized by a warm climate - grassland - and seasonally dry climate conditions.






8. Subsets below the kingdom level






9. 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






10. A cell will only remain stable if the surface area of the plasma membrane maintains a __________ with the volume of the cytoplasm.






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






12. The bronchi lead to the two lungs where they branch out in all directions into smaller tubules known as bronchioles.






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






14. A type of innate behavior (instinct.) The FAP is a preprogrammed response to a particular stimulus (known as a releaser stimulus). FAP's include courtship behaviors and feeding of young. These are not learned behaviors - they are automatically perfor






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






16. 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.






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






18. 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.






19. The sharp boundary of an ecosystem.






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






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






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






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






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






25. Include: Vascular tissue - including both xylem and phloem - and sieve plates existing between cells of the stem.






26. When stems bend toward the light it is due to _____________ the hormone auxin - in response to light - migrates from the light to the dark side of the shoot tip. The cells on the dark side now contain more auxin - which causes the cells on that side






27. Contains the chromosomes and is the site of reproduction through mitosis and meiosis.






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






29. The pituitary gland.






30. In both living and non-living environments.






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






32. 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.






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






34. 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.






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






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






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






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






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






40. Inorganic phosphate






41. Breaking down






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






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






44. The lineage that led to the modern Homo Sapiens diverged from the lineage that led to the modern chimpanzee.






45. Covalent bonds






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






47. There was extensive radiation of fish during the Devonian and Silurian periods within the Paleozoic Era.






48. The physical place where a particular organism lives. It must include all the factors that will support its life and reproduction.






49. Contains optic lobes - controls sight.






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







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