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






2. The transfer of pollen to the micropyle or to a receptive surface that is associated with an ovule (such as stigma)






3. A mature ovary






4. The stable - biotic part of the ecosystem in which populations exist in balance with each other and with the environment






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






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






7. Organism that consumes food from outside itself instead of producing it






8. A reproductive cell






9. Fluid-filled structures in the inner ear that are associated with the sense of balance






10. A thin - transparent - eyelid-like membrane that opens and closes laterally across the cornea of many vertebrates (the third eyelid)






11. Globular proteins produced by tissues that destroy or inactivate antigens






12. Comprises somatic and autonomic nervous systems; consists of cranial nerves and spinal nerves






13. The chamber in the alimentary canal of certain vertebrates located below the large intestine - into which the ureter and reproductive organs empty (as in frogs)






14. Adenosine diphosphate (ADP) and adenosine triphosphate (ATP) - which are energy storage molecules






15. The sac in the ovary in which the egg develops






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






17. Pertaining to a subdivision of the autonomic nervous system of vertebrates






18. The hindbrain region that controls equilibrium and muscular coordination






19. The class of free-living flatworms






20. Laws of classical genetics established through Mendel's experiments with peas






21. A process of photosynthesis in which water is split into H+ and OH-; the hydrogen ion is then joined to NADP






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






23. The first filial generation (first offspring)






24. The place of attachment of the mitotic fiber to the chromosome






25. Adrenaline






26. The outermost embryonic germ layer that gives rise to the epidermis and the nervous system






27. The portion of a DNA molecule that serves as a unit of heredity; found on the chromosome






28. Any cell capable of ingesting another cell






29. A cell in the retina that is sensitive to weak light






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






31. A structure formed by the wall of the uterus and the chorion of the embryo; serves as the area in which the embryo obtains nutrition from the parent






32. 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






33. An organ that is not functional in an organism - but was functional at some period in its evolution






34. A kingdom of unicellular living organisms that are neither animals nor plants; includes some groups of algae - slime molds and protozoa






35. A large molecule that is composed of many similar molecule units






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






37. The dorsal part of the hip girdle






38. A white or colorless - amorphous - horny substance that forms part of the outer integument of insects - crustaceans and some other invertebrates; it also occurs in certain fungi






39. A microscopic - whiplike filament that serves as a locomotor structure in flagellate cells






40. The removal of hydrogen or electrons from a compound or addition of oxygen; half of a redox (oxidation or reduction) process






41. Waves of contraction and relaxation passing along a tubular structure - such as the digestive tube






42. A category of taxonomic classification that is ranked above class and under kingdoms






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






44. 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)






45. A marine arthropod - now extinct - that lived during the Paleozoic era






46. A mutation in which a single nucleotide base is substituted for another nucleotide base - or an extra nucleotide base is added






47. A plant that has two seed leaves or cotyledons






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






49. Describes a fluid that has the same osmotic pressure as a fluid it is compared to






50. A fatty sheath surrounding the axon of a neuron that aids in stimulus transmission; it is secreted by the Schwann cells