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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. Is the process that releases energy for use by the cell.






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






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






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






5. The physical place where a particular organism lives. It must include all the factors that will support its life and reproduction.






6. Most chemical pollutants accidentally ingested by humans are __________ - mixed with broken down pigments in the bile - then bile is secreted into the small intestine - proceeds to the large intestine - and is expelled in the feces.






7. Protein synthesis






8. 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.






9. The phyla of sponges.






10. A hydrogen bond involves the ________________ and can be easily broken.






11. In both living and non-living environments.






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






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






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






15. 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.






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






17. Contains many genes and is a structure comprised of linear DNA and associated proteins.






18. The phyla of round worms.






19. The transfer of electrons.






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






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






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






23. A length of DNA (with corresponding histones) is responsible for the production of a certain protein that causes a particular trait to be expressed in an organism.






24. 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






25. The class composed of birds.






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






27. 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.






28. Process in which elements - chemical compounds - and other forms of matter are passed from one organism to another and from one part of the biosphere to another.






29. Anabolism






30. Breaking down






31. Covers and protects the leaf.






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






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






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






35. Is very rare and is not absorbed by plant leaves. Phosphorous is nearly always found in solid form.






36. The lineage that led to the modern Homo Sapiens diverged from the lineage that led to the modern chimpanzee.






37. 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.






38. Cleave strands of DNA segments at certain sites.






39. Is a substance that changes the speed of a reaction without being affected itself.






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






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






42. Controls hunger and thirst






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






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






45. Are surrounded by capillaries that allow for carbon dioxide to diffuse into the lungs and oxygen to diffuse out.






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






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






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






49. Mitochondria - they constitute the center of cellular respiration.

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50. Between the endoderm and ectoderm - layer that will eventually form the muscles - and organs of the skeletal - circulatory - respiratory - reproductive - and excretory systems.