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SAT Subject Test: Biology

Subjects : sat, 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. A behavioral or biological change that enables an organism to adjust to its environment






2. A pair of chromosome pairs present during the first metaphase of meiosis






3. Any physical feature that prevents the ecological niches of different organisms from overlapping






4. The largest artery; carries blood from the left ventricle






5. A mitotic stage in which nuclei reform and nuclear membrane reappears






6. Substance secreted by organisms that influences the behavior of other members of the same species






7. A simple sugar






8. A bundle of nerve axons






9. A pouched mammal - such as the kangaroo or opossum






10. There are two kinds of sex chromosomes - X and Y; XX signifies a female and XY signifies a male






11. Three membranes that envelop the brain and spinal cord (pia mater - dura mater and arachnoid)






12. An organ that stores bile






13. One of the two strands that constitute a chromosome; chromatids are held together by the centromere






14. The extraembryonic membrane in birds - reptiles and mammals that surrounds the embryo - forming an amniotic sac






15. The pressure exerted by the contents of a cell against the cell membrane or cell wall






16. A resistance to disease developed through the immune system






17. A stalklike or elongated body part - usually pointed at one end






18. The thigh bone of vertebrates






19. An accumulation of axons within the CNS that is white because it is fatty - myelin sheath






20. The outermost bone of the middle ear (hammer)






21. Functional urinary tubules responsible for excretion in the kidney of vertebrates






22. A five carbon sugar that has one oxygen atom less than ribose; a component of DNA






23. A 12-carbon sugar that is formed by the union of two glucose units (a disaccharide)






24. Cycle in photosynthesis that reduces fixed carbon to carbohydrates through the addition of electrons ("dark cycle")






25. The enzyme released from the blood platelets in vertebrates during clotting






26. The uppermost portion of pistil upon which pollen grains alight






27. A group of populations that can interbreed






28. A tract of nerve fibers connecting the two cerebral hemispheres






29. Pertains to a gene or characteristic that is masked when a dominant allele is present






30. A colloidal system involving the dispersion of a liquid within a liquid






31. An organic compound to which hydrogen and oxygen are attached; the hydrogen and oxygen are in a 2:1 ratio; examples include sugars - starches and cellulose






32. The junction or gap between the axon terminal of one neuron and the dendrites of another neuron






33. A protein compound containing iron that is found in red blood cells






34. A plant growth hormone






35. The most anterior portion of the small intestine of vertebrates - adjacent to the stomach; the continuation of the stomach into which the bile duct and pancreatic duct empty






36. Movement of amoeba






37. A fluid-filled sensory apparatus that aids balance and hearing






38. Describes an individual that has the same gene for the same trait on each homologous chromosome






39. A habitat zone - such as desert - grassland or tundra






40. An enzyme that acts upon maltose and converts it into glucose






41. One of the primary tissues of the embryo






42. An organic cofactor required for enzyme activity






43. The area of medulla that regulates the rate of breathing






44. A section of the posterior forebrain associated with the pituitary gland






45. An organelle that regulates cell functions and contains the genetic material of the cell






46. The genetic makeup of an organism without regard to physical appearance






47. One or two or more types of genes - each representing a particular trait; many alleles exist for a specific gene locus






48. The breeding of an organism with a homozygous recessive in order to determine whether an organism is homozygous dominant or heterozygous dominant for a given trait






49. The reproductive organ that produces sex cells






50. An organism that must get its inorganic and organic raw materials from the environment; a consumer