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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 colloidal system involving the dispersion of a liquid within a liquid






2. Occurs when different traits are inherited together more often than they would have been by chance along; it is assumed that these traits are linked on the same chromosome






3. Describes structures that have similar function but different evolutionary origins; e.g. - a bird's wing and a moth's wing






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






5. A process of asexual reproduction in which the offspring develop from an outgrowth of the plant or animal






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






7. A symbol that denotes the relative concentration of hydrogen ions in a solution






8. A typical coelenterate individual with a hollow tubular body whose outer ectoderm is separated from its inner ectoderm by mesoglea






9. A mature ovary






10. An enzyme that acts upon sucrose






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






12. One of a class of organic compounds that contains a molecular skeleton of four fused rings of carbon






13. A network or mesh of fibrils - fibers or filaments






14. The ability of an organism to contribute its alleles and therefore is phenotypic traits to future generations






15. A neuron that picks up impulses from receptors and transmits them to the spinal cord






16. xylem that is no longer being used






17. A space in the body






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






19. The womb in which the fetus develops






20. Bacteria that are rod shaped






21. A network of capillaries in the Bowman's capsules of the kidney






22. An organ that stores urine temporarily before it is excreted






23. The coiled part of the sperm duct - adjacent to the testes in mammals






24. Passively floating or drifting flora and fauna of a body of water; consists mainly of microscopic organisms






25. Semen






26. Plant tissue consisting of large thin-walled cells for storage






27. Adrenaline






28. The passive - rhythmical expansion or dilation of the cavities of the heart (atria or ventricles) that allows these organs to fill with blood; preceded and followed by systole (contraction)






29. A sex or reproductive cell that must fuse with another of the opposite type to form a zygote






30. An animal with a constant body temperature






31. The movement of particles from one place to another as a result of their random motion






32. The part of the body of an animal that is between the neck or head and the abdomen






33. The process by which environmental patterns or objects presented to a developing organism during a "critical period" of its growth is accepted as a permanent element of its behavior






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






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






36. A hormone that regulates water reabsorption






37. The recycling of carbon from decaying organisms for use in future generations






38. Occurs when certain traits are determined by genes on sex chromosomes






39. An abbreviation of nicotinamide-adenine-dinucleotide - also called DPN; a respiratory oxidation-reduction molecule






40. An abbreviation of nicotinamide-adenine-dinucleotide-phosphate - also called TPN; an organic compound that serves as an oxidation-reduction molecule






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






42. Describes cells that have a double set of chromosomes in homologous pairs (2n)






43. The outermost - extra-embryonic membrane of reptiles and birds






44. An organelle that contains enzymes that aid in intracellular digestion






45. A type of virus that can destroy bacteria by infecting - parasitizing and eventually killing them






46. The outermost surface of an organism






47. A disease-causing organism






48. An organism that possesses both the male and the female reproductive organs






49. An organism that obtains its nutrients from dead organisms






50. A hormone that stimulates plant stem elongation