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






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






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






4. The phyla of round worms.






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






6. Inorganic phosphate






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






8. 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






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






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






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






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






13. Controls hunger and thirst






14. Mass extinctions promote diversification because _______________ - making conditions favorable for the establishment of new - diverse species.






15. Protein synthesis






16. 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.






17. Provide rigidity to plant cells (and some bacteria) and are not found within animal cells.






18. The effect of a substrate concentration on the initial reaction rate in the presence of a limited amount of enzyme: _________________ as the concentration of substrate is increased until all the enzymes are used - then the reaction rate will level of






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






20. Niche






21. Is a social behavior of an organism that is beneficial to the group at the individual's expense.






22. The pharynx is between the nasal passage and the trachea. Air passes into the body via the nasal passage - then passes through the pharynx and on to the trachea.






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






24. Controls olfactory lobes (smell)






25. The pituitary gland.






26. 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.






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






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






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






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






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






32. 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.






33. 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.






34. 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.






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






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






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






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






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






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






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






42. Refers to the birthrate of a population.






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






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






45. The phyla composed of segmented worms.






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






47. Is a kingdom that includes algae and protozoa.






48. Contain organisms that are multicellular eukaryotes including vertebrates and invertebrates.






49. Sex-linked recessive disorder carried on the x chromosome defined by the absence of one or more proteins required for blood clotting






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