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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 hormone that stimulates plant stem elongation






2. The outer - transparent layer of the eye






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






4. Vascular tissue of the plant that aids in support and carries water






5. A hoofed animal






6. A mall sex hormone (e.g. - testosterone)






7. A plant that has a single cotyledon or seed-leaf






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






9. Nonliving - as in the physical environment






10. The intake of food from the environment into the alimentary canal






11. An animal phylum in which all members have a notochord - dorsal nerve cord and pharyngeal gill slits at some embryonic stage; includes the Cephalochordata and the Vertebrates






12. The living together of two organisms in an intimate relationship






13. The female gamete; it is nonmotile - large in comparison to male gametes - and stores nutrients






14. The loss of all or part of a chromosome






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






16. A perforation leading from the pharynx to the outside environment that is a characteristic of chordates at one stage of their development






17. 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






18. A plant-eating animal






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






20. The conversion of digested foods and other materials into forms usable by the body (i.e. - the conversion of amino acids into proteins)






21. A group of populations that can interbreed






22. The basal branch of each spinal nerve; carries motor neurons






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






24. The living matter of a cell - located between the cell membrane and the nucleus






25. An abbreviation of ribonucleic acid - a nucleic acid in which the sugar is ribose; a product of DNA transcription that serves to control certain cell activities






26. A mature ovary






27. Any cell capable of ingesting another cell






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






29. The recycling of nitrogen from decaying organism for use in future generations






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






31. Describes a fluid that has a lower osmotic pressure than a fluid it is compared to






32. The part of the neuron that transmits impulses to the cell body






33. The cavity in the mammalian ovary in which the egg ripens






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






35. The type of mating that occurs when an organism selects a mating partner that resembles itself






36. A microscopic opening located in the epidermis of a leaf and formed by a pair of guard cells






37. An ion with a positive charge - or an ion that migrates towards the cathode (negative electrode) in an electric field






38. The stage in mitosis that is characterized by the migration of chromatids to opposite ends of the cell; the stage in meiosis during which homologus pairs migrate (Anaphase I) - and the stage in meiosis during which chromatids migrate to different end






39. A ductless gland that secretes hormones directly into the bloodstream






40. The swelling at the end of an axon






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






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






43. A dominant allele suppresses the expression of the other member of an allele pair when both members are present






44. Partially digested food in the stomach






45. A nerve cell






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






47. A mass of cells that have similar structures and perform similar functions






48. A process of formation of ova






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






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







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Can you answer 50 questions in 15 minutes?


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