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






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






3. High temperatures






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






5. In DNA Thymine pairs with...






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






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






8. Is a coenzyme required in the synthesis of collagen.






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






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






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






12. The pituitary gland.






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






14. 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).






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






16. Is a molecule that stores information for protein synthesis and genetic coding.






17. Contains optic lobes - controls sight.






18. 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.






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






20. Are easily converted to ATP - but the main energy products of the Krebs cycle liberate electrons then used in the electron transfer reactions.






21. Proposes that those individuals within a population that are most adapted to the environment are also the most likely individuals to produce viable offspring.






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






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






24. 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






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






26. 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.






27. Protein synthesis






28. Is composed of an anterior and posterior lobe. The stalk of the lobe is connected to the hypothalamus. Antidiuretic Hormone (AH) is produced in the hypothalamus and stored in the posterior pituitary. Upon nervous stimulation from the hypothalamus - t






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






30. An enzyme is unaffected by the reactions it catalyzes






31. Anabolism






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






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






34. Plants and animals obtain usable nitrogen






35. Inorganic phosphate






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






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






38. Disease causing






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






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






41. 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






42. The process whereby cells build molecules and store energy (in the form of covalent chemical bonds).






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






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






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






46. Subsets below the kingdom level






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






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






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






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