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






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






3. Are formed when the plasma membrane of a cell encloses a molecule outside the membrane - then releases a membrane bound sack containing the desired molecule into the cytoplasm. This process allows the cell to absorb molecules that are larger in size






4. 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.






5. Some energy is lost as heat and becomes unusable.






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






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






8. An orienting response to light.






9. 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.






10. The process of forming eggs and sperm cells in the reproductive organs.






11. 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.






12. 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.






13. 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






14. Covalent bonds






15. A length of DNA (with corresponding histones) is responsible for the production of a certain protein that causes a particular trait to be expressed in an organism.






16. Covers and protects the leaf.






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






18. Are the organelles where cellular respiration occurs.






19. High temperatures






20. Protein synthesis






21. The total amount of genetic information available for a given species.






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






23. 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.






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






25. 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.






26. 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.






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






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






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






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






31. 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






32. Sex-linked recessive disorder carried on the x chromosome defined by the absence of one or more proteins required for blood clotting






33. Subsets below the kingdom level






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






35. The individual we recognize as an adult fern.






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






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






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






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






41. 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).






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






43. Ended with the extinction of the dinosaurs.






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






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






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

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47. Respiratory organs within insects






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






49. Is a kingdom that includes algae and protozoa.






50. 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.







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