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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. In order to become an established part of an island ecosystem there must be a populations large enough to ensure _________ - a food source - a suitable habitat - and a source of moisture.






2. Controls balance and muscle coordination






3. The vocal cords are found in the larynx.






4. 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






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






6. Is found on the stem between nodes.






7. 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.






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






9. Is the organelle where cellular reproductive processes occur.






10. 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.






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






12. 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.






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






14. Has an equal (50%) chance of being passed from a carrier mother to a son or a daughter.






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






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






17. Synthesis






18. Is an accidental change of the DNA sequence of the gene that can result in creating a change of trait that is not found in the parent.






19. Has extreme cold temperatures - low precipitation - modified grassland - perma-frost - a short growing season and some plants and animals.






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






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






22. In DNA Guanine pairs with...






23. Super-class of vertebrae including organisms with no jaws.






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






25. Becomes available for erosion as undersea sedimentary rocks are up-thrust by volcanic activity - erosion releases it from rocks into streams where it combines with oxygen to form phosphates in lakes that are then absorbed by plants - it is recycled t






26. Enzymes are usually __________ to certain reactions.






27. An enzyme is unaffected by the reactions it catalyzes






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






29. Disease causing






30. Controls olfactory lobes (smell)






31. Is a kingdom that includes algae and protozoa.






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






33. Decomposition of living matter for consumption.






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






35. 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






36. The role played by an organism in its food chain.






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






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






39. Is the sugar that lactase acts upon.






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






41. Secretes insulin to lower blood sugar and maintain equilibrium. A person eats three candy bars. Within minutes this endocrine gland affects blood-glucose homeostasis.






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






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






44. 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.






45. Is the outermost of the three main layers of an embryo.






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






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






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






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