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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 systematic search for individuals with a specific genotype in a delineated population.






2. Is found in the root cap and is responsible for quick growth in the roots.






3. Disease causing






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. Is a compound fruit that forms from several ovaries of separate flowers that fuse together during ripening (strawberry - or pineapple).






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






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






8. Digestive enzymes - hydrochloric acid - and gastric juices which aid in digestion. The mucous secreted by the stomach protects the stomach lining from the acids and juices.






9. 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.






10. 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.






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






12. Decomposition of living matter for consumption.






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






14. Is a social behavior of an organism that is beneficial to the group at the individual's expense.






15. 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.






16. The phyla of round worms.






17. The class composed of birds.






18. The cells of a developing embryo (at the gastrula stage) differentiate into layers - that will later develop into different tissues and organs - including the mesoderm - ectoderm - and endoderm.






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






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






21. Are membrane-bound organelles that contain digestive enzymes that digest dead or unused material within the cell or materials absorbed by the cell for use.






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






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






24. May be ions or non-protein molecules - they are similar to cofactors - but differ in that they are tightly attached by covalent bonds to the enzyme - rather than being separate atoms or molecules.






25. Ended with the extinction of the dinosaurs.






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






27. 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.






28. Anabolism






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






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






31. The vocal cords are found in the larynx.






32. Produce seeds without flowers. They include conifers (cone-bearers) and cycads.






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






34. Niche






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






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






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






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






39. All store energy within their chemical bonds.






40. Contain organisms that are multicellular eukaryotes including vertebrates and invertebrates.






41. 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.






42. Is the waxy protective outer coating of leaves.






43. Protein synthesis






44. The individual we recognize as an adult fern.






45. Carbon - nitrogen - phosphorous - and water. These are all recycled through biogeochemical processes.






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






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






48. The effect of a substrate concentration on the initial reaction rate in the presence of a limited amount of enzyme: _________________ as the concentration of substrate is increased until all the enzymes are used - then the reaction rate will level of






49. Controls sensory and motor responses - and controls memory - speech - and intelligence factors.






50. 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.