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






2. The phyla of round worms.






3. Contain one celled eukaryotes such as algae and protozoa.






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






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






6. Transfers water and does not require sieve plates to allow nutrients through.






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






8. Developed by the German scientists Schleiden and Schwann - States that all living things are made of cells - cells are the basic units of life - all cells come from pre-existing cells.






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






10. The size of a cell is limited by the ratio of its surface area to volume.






11. Protein synthesis






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






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






15. 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






16. Controls hunger and thirst






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






18. Is found on the stem between nodes.






19. 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






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






21. Has loosely packed cells that allow for gas and moisture exchange.






22. A suffix meaning 'to break apart.' O || ||






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






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






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






27. Synthesis






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






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






30. In DNA Guanine pairs with...






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






32. Plants and animals obtain usable nitrogen






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






34. Is when expression of genetic traits is determined by weather the trait is inherited from the mother or the father.






35. 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.






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






37. The vocal cords are found in the larynx.






38. Decomposition of living matter for consumption.






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






40. Are where the sugars synthesized by photosynthesis travel through to various parts of the plant.






41. 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






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






43. 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).






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






45. 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.






46. Absorb a photon of light and is found in the grana of the chloroplast.






47. An enzyme is unaffected by the reactions it catalyzes






48. 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.






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






50. 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