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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. Super-class of vertebrae including organisms with jaws.






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






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






4. Are formed when the plasma membrane of a cell encloses a molecule outside the membrane - then releases a membrane bound sack containing the desired molecule into the cytoplasm. This process allows the cell to absorb molecules that are larger in size






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






6. Is made of stacked cells connected by sieve plates that allow nutrients to pass from cell to cell. They transport food made in the leaves (by photosynthesis) to the rest of the plant).






7. Is found on the stem between nodes.






8. The pituitary gland.






9. Subsets below the kingdom level






10. 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.






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






12. The sharp boundary of an ecosystem.






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






14. The phyla composed of segmented worms.






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






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






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






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






19. A reaction that adds water to another compound. (2 hydrogens - 1 oxygen).






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






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






22. In DNA Thymine pairs with...






23. Is a phylum that contains sponges.






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






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






26. A length of DNA (with corresponding histones) is responsible for the production of a certain protein that causes a particular trait to be expressed in an organism.






27. 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






28. Internally generated patterns of body functions - including hormonal signals - sleep - blood pressure - and temperature regulation - which have approximately a 24-hour cycle and occur even in the absence of normal cues about whether it is day or nigh






29. Respiratory organs within insects






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






31. Breaking down






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






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






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






35. Covalent bonds






36. 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






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






38. 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.






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






40. 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.






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






42. An orienting response to light.






43. Is an abundant element found in protoplasm. Together with oxygen - hydrogen - and nitrogen - it composes over 90% of cellular structure.






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






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






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






47. 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






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






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






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