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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 symbiotic relationship from which both organisms involved derive some benefit






2. The loss of all or part of a chromosome






3. The transformation of an immature animal into an adult; a change in the form of an organ or structure






4. The liquid part of blood






5. Unicellular organism with simple cell structure






6. The kind of bond formed when two amino acid units are jointed end to end






7. 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






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






9. A plant-eating animal






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






11. The thigh bone of vertebrates






12. The anaerobic respiration of carbohydrates






13. The innermost tissue layer of the eyeball that contains light-sensitive receptor cells






14. The thin - bent part of the renal tubule that is the site of the counter-current flow and the sodium gradient






15. A sensory hair structure in the utriculus and the sacculus of the inner ear; orients the head with respect to gravity






16. Fluid skeleton of annelids






17. The fist stage of protein synthesis - in which the information coded in the DNA base is transcribed onto a strand of mRNA






18. The contraction of the atria or ventricles of the heart






19. An organism that is heterozygous for two different traits






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






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






22. Protein threads that form in the blood during clotting






23. The part of the hindbrain located in the brain stem






24. The process of breaking down large organic molecules into smaller ones






25. The instance of polymorphism in which there is a difference of form between two members of a species - as between males and females






26. The triploid tissue in some seeds that contains stored food and is formed by the union of one sperm nucleus with two nuclei of the female's gametophyte






27. Plant growth stimulated by light (stem: + - towards light; root: - - away from light)






28. A ductless gland in upper chest region concerned with immunity and the maturation of lymphocytes






29. 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






30. A structure that extends from the trunk of an organism and is capable of active movements






31. A process by which the cell membrane is invaginated to form a vesicle which contains extracellular medium






32. A transmitter substance released from the axons of nerve cells at the synapse






33. The pigment in rod cells that causes light sensitivity






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






35. A structure that arises during mitosis and helps separate the chromosomes; composed of tubulin






36. The second filial generation; offspring resulting from the crossing of individuals of the F1 generation






37. Membranous organelles involved in the storage and modification of secretory products






38. Living - as in living organisms in the environment






39. A reproductive cell that is capable of developing directly into an adult






40. A relationship in which one organism benefits at the expense of another






41. The central tissue of a stem - used for food storage






42. The hormone secreted by the corpus luteum of vertebrates and the placenta of mammals; its function is to maintain the endometrium






43. A marine biome; a region on the continental shelf that contains an ocean area with depths of up to 600 ft






44. Cytoplasmic organelles that serve as sites of respiration; a rod-shaped body in the cytoplasm known to be the center of cellular respiration






45. The association of physical - visceral response with an environmental stimulus with which it is not naturally associated; a learned response






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






47. The process by which a certain function is regulated by the amount of the substance it produces






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






49. A foreign protein that stimulates the production of antibodies when introduced into the body of an organism






50. A blood vessel that carries blood back to the heart from the capillaries