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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. The class composed of birds.






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






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






4. Engages in both passive and active transport.






5. 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.






6. Is the organelle where cellular reproductive processes occur.






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






8. Is the sugar that lactase acts upon.






9. 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.






10. Some enzymes contain a __________ component that is essential to their functions.






11. Covers and protects the leaf.






12. Is the number of organisms that can be supported within a particular ecosystem.






13. 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.






14. This is a carboxyl group and is the signature group found within organic acids.






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






16. The phyla of round worms.






17. When the water concentration inside and outside the cell is equal - It is said to be in an...






18. 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.






19. 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.






20. The total amount of genetic information available for a given species.






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






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






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






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






25. The transfer of electrons.






26. 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.






27. Is the outermost of the three main layers of an embryo.






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






29. Consists of undifferentiated cells capable of quick growth and specialization. It is responsible for elongation of the stem.






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






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






32. Are where the sugars synthesized by photosynthesis travel through to various parts of the plant.






33. Chlorophyll pigments absorb photons of light - leaving the chlorophyll in a higher energy (excited) state - these then supply energy to reactions that produce ATP from ADP and Pi.






34. Some energy is lost as heat and becomes unusable.






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






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






37. The process of forming eggs and sperm cells in the reproductive organs.






38. All store energy within their chemical bonds.






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






40. Occurs when an individual from an adjacent population of the same species immigrates and breeds with a member of a previously locally isolated group - resulting in a change in the gene pool.






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






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






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






44. Are the organelles where cellular respiration occurs.






45. Contain one celled eukaryotes such as algae and protozoa.






46. 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.






47. Has loosely packed cells that allow for gas and moisture exchange.






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






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






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







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