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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. The pollination of the pistil of one flower with pollen from the stamen of a different flower of the same species






2. The study of the evolutionary descent and interrelations of groups of organisms






3. An organism that does not require free oxygen in order to respire






4. Fluid in the eye - found between the cornea and the lens






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






6. The outer - transparent layer of the eye






7. Describes two or more structures that have similar forms - positions and origins despite the differences between their current functions






8. A behavioral or biological change that enables an organism to adjust to its environment






9. A condition in which an organism may have a multiple of the normal number of chromosomes (4n - 6n - etc)






10. The final stages of protein synthesis in which the genetic code of nucleotide sequences is translated into a sequences of amino acids






11. An opening in the eye whose size is regulated by the iris






12. An organelle in the cytoplasm that contains RNA; serves as the site of protein synthesis






13. A substance that is acted upon by an enzyme






14. Part of the nephron in the kidney; involved in excretion

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15. The swelling at the end of an axon






16. A response by an organism to the duration and timing of light and dark conditions






17. The extraembyonic membrane of birds - reptiles and mammals that serves as an area of gaseous exchange and as a site for the storage of noxious excretion products






18. 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






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






20. A tube connecting the ovaries and the uterus






21. A vacuole in the cytoplasm in which digestion takes place (in protozoans)






22. Small - disc-shaped bodies in the blood that play a chief role in coagulation






23. Pertaining to a restricted locality; ecologically - occurring only in one particular region






24. A plant that lives on another plant mensalistically






25. Random evolutionary changes in the genetic makeup of a population






26. An over secretion of thyroid that leads to high metabolism and exopthalmia goiter






27. The description of a plant life cycle that consists of a diploid - asexual - sporophyte generation and a haploid - sexual - gametrophyte generation






28. An association between an algae and a fungus that is symbiotic and mutualistic in nature






29. Hormone active in osmoregulation; a mineral corticoid produced by the adrenal cortex; stimulates reabsorption of Na+ and secretion of K+






30. The intake of fluid droplets into a cell






31. A class of arthropods that includes scorpions - spiders - mites and ticks






32. An antigen in blood; can cause erythroblastosis fetalis when the mother is Rh- and the fetus is Rh+






33. A process by which the cytoplasm and the organelles of the cell divide; the final stage of mitosis






34. The thin-walled anterior chamber of the heart (also called the auricle)






35. A metabolic stage between mitoses in which genetic material is reproduced






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






37. Any cell capable of ingesting another cell






38. The sensory branch of each spinal nerve






39. One-thousandth of a millimeter; a unit of microscopic length






40. A stage of embryonic development in which the embryo consists of a hollow ball of cells






41. A hormonal secretion of the adrenal cortex






42. The largest portion of the human brain; it is believed to be the center of intelligence - conscious thought and sensation






43. An organic molecule consisting of joined phosphate - 5-carbon sugar (deoxyribose or ribose) - and a purine or a pyrimidine (adenine - guanine - uracil - thymine or cytosine)






44. A flesh-eating animal; a holotrophic animal that subsists on other animals or parts of animals






45. Asexual reproduction; in this process - the parent organism splits into two equal daughter cells






46. The hindbrain region that controls equilibrium and muscular coordination






47. Movement of amoeba






48. In mammals - the slitlike opening formed by the vocal folds in the larynx






49. The coagulation of blood caused by the rupture of platelets and the interaction of fibrin - fibrinogen - thrombin - prothrombin and calcium ions






50. An organism that obtains its nutrients from dead organisms