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






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






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






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






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






6. 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.






7. Is the organelle where cellular reproductive processes occur.






8. What phylum are snakes in?






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






10. Are tubes constructed of a geometrical arrangement of microtubules in a pinwheel shape. Their function includes the formation of new microtubules - but is primarily to form the structural skeleton around which cells split during mitosis and meiosis.






11. 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).






12. The individual we recognize as an adult fern.






13. Controls hunger and thirst






14. 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.






15. Covers and protects the leaf.






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






17. Decomposition of living matter for consumption.






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






19. Protein synthesis






20. 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.






21. Respiratory organs within insects






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






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






24. 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.






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






26. The sharp boundary of an ecosystem.






27. Subsets below the kingdom level






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






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






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






31. States that where random mating is occurring within a population that is in equilibrium with its environment - the gene frequencies and genotype ratios will remain constant from generation to generation. It is a mathematical formula that shows why re






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






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






34. Ended with the extinction of the dinosaurs.






35. Is the waxy protective outer coating of leaves.






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






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






38. Is found on the stem between nodes.






39. Synthesis






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






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






42. 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.






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






44. Nonvascular plants such as mosses which lack tissue for conducting food or water.






45. 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






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






47. 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.






48. Is an abundant element found in protoplasm. Together with oxygen - hydrogen - and nitrogen - it composes over 90% of cellular structure.






49. Some enzymes contain a __________ component that is essential to their functions.






50. Niche