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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 found on the stem between nodes.






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






3. Carbon - Hydrogen - Oxygen - and Nitrogen






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






5. Are cells involved in immunity and are produced in bone marrow as stem cells.






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






7. Developed by the German scientists Schleiden and Schwann - States that all living things are made of cells - cells are the basic units of life - all cells come from pre-existing cells.






8. Is composed of a double layer (bilayer) of phospholipids with protein globules imbedded within the layers. The construction of the membrane allows it to aid the function of the cell by permitting entrance and exit of molecules as needed by the cell.






9. 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.






10. 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.






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






12. 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






13. Is more like branching out of a tree with dead ends and new branches appearing simultaneously than like steps on a ladder.






14. Is a kingdom that includes algae and protozoa.






15. Cleave strands of DNA segments at certain sites.






16. Niche






17. 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.






18. 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






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






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






21. 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






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






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






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






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






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






27. The class composed of birds.






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






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






30. A sex-linked recessive disorder carried on the x chromosome in which an individual cannot perceive certain colors.






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






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






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






34. Bacteria break ammonia into nitrites - then into nitrates that are usable by plants; volcanic activity produces ammonia and nitrates that enter the soil and can be absorbed by plants; lightning reacts with atmospheric nitrogen to form nitrates that a






35. What phylum are snakes in?






36. Engages in both passive and active transport.






37. Contains the chromosomes and is the site of reproduction through mitosis and meiosis.






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






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






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






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






42. The individual we recognize as an adult fern.






43. Are the monomers that form nucleic acids - containing a sugar - phosphate group - and a nitrogenous base.






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






45. Is the period when the cell is active in carrying on the function it was designed to perform within the organism. Cells spend much more time in interphase than in cell division.






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






47. An orienting response to light.






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






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






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