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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. Controls hunger and thirst






2. Transparency - polarity - high specific heat - and density (lower density when solid than when liquid.).






3. 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.






4. The pituitary gland.






5. Controls balance and muscle coordination






6. Fossilized burrows from multicellular organisms begin to appear in the geological record approximately 700 million years ago during the Precambrian period. These multicellular animals had only soft parts and could not be fossilized.






7. 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.






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






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






10. Carbon - Hydrogen - Oxygen - and Nitrogen






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






12. Small - green - heart-shaped gametophyte plant form of a fern that can make its own food and absorb water and nutrients from the soil






13. Covers and protects the leaf.






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






15. 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.






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






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






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






19. Approximately 7 - making it neither basic (under 7) nor alkaline (over 7).






20. 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






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






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






23. 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






24. Covalent bonds






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






26. 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.






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






28. Contains optic lobes - controls sight.






29. 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.






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






31. 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.






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






33. Breaking down






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






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






36. Is a special protein that acts as a catalyst for organic reactions.






37. It secretes saliva which enters the digestive tract and aids the digestive process.






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






39. Is the waxy protective outer coating of leaves.






40. In DNA Guanine pairs with...






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






42. What phylum are snakes in?






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






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






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






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






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






48. Layer that will become the gut lining as well as some accessory structures.






49. Is the major component of sand and is the most abundant element found in the lithosphere. It is not recycled.






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