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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 comprised of all the organisms that interact within a given ecosystem whether or not it is at carrying capacity.






2. 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






3. 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.






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






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






6. Is secreted by the adrenal cortex to promote sodium reabsorption in the kidney.






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






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






9. The phyla composed of segmented worms.






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






11. Breaking down






12. Anabolism






13. Is an ion that binds to an enzyme making it more able to catalyze a reaction.






14. 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.






15. In DNA Thymine pairs with...






16. 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.






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






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






19. 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.






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






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






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






23. 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.






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






25. Has an equal (50%) chance of being passed from a carrier mother to a son or a daughter.






26. Controls hunger and thirst






27. Covers and protects the leaf.






28. High temperatures






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






30. The class composed of birds.






31. Is the organelle where cellular reproductive processes occur.






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






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






34. Decomposition of living matter for consumption.






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






36. In DNA Guanine pairs with...






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






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






39. Is a packet of digestive enzymes that destroy cellular wastes.






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






41. Produces the most ATP molecules - yielding 34 ATPs per glucose molecule.






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






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






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






45. The phylum of insects (bees).






46. 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.






47. Is a phylum that contains sponges.






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






49. Subsets below the kingdom level






50. Respiratory organs within insects