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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 more like branching out of a tree with dead ends and new branches appearing simultaneously than like steps on a ladder.






2. 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.






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






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






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






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






7. All store energy within their chemical bonds.






8. High temperatures






9. 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






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






11. Mass extinctions promote diversification because _______________ - making conditions favorable for the establishment of new - diverse species.






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






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. Cleave strands of DNA segments at certain sites.






15. Is a substance that changes the speed of a reaction without being affected itself.






16. An opportunistic life strategy strategy. Lichens invading a bare rock area after a volcanic eruption is an example.






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






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

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19. Controls balance and muscle coordination






20. Is secreted by the adrenal cortex to promote sodium reabsorption in the kidney.






21. Controls olfactory lobes (smell)






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






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






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






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






26. Ended with the extinction of the dinosaurs.






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






28. Is a kingdom that includes algae and protozoa.






29. 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.






30. Chlorophyll pigments absorb photons of light - leaving the chlorophyll in a higher energy (excited) state - these then supply energy to reactions that produce ATP from ADP and Pi.






31. Are organic cofactors or coenzymes that are required by some enzymatic reactions.






32. The number of organisms in a given community - can be above or below the carrying capacity.






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






34. Respiratory organs within insects






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






36. In DNA Thymine pairs with...






37. 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.






38. Engages in both passive and active transport.






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






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






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






42. Is a phylum that contains sponges.






43. The trachea includes the windpipe or larynx in its upper portion - and the glottis - an opening that allows the gases to pass into the two branches known as the bronchi.






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






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






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






47. 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






48. 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).






49. Is the period when the cell is active in carrying on the function it was designed to perform within the organism. Cells spend much more time in interphase than in cell division.






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







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