Test your basic knowledge |

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






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






3. The transfer of a piece of chromosome to another chromosome






4. A compact linear organization of nerve tissues with ganglia in the CNS






5. The space between the mesodermal layers that forms the body cavity of some animal phyla






6. An organ centrally involved in the human digestive system






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






8. Describes arthropods and other animals whose skeletal or supporting structures are outside the skin






9. A flowering plant; a plant of the class Angiospermae that produces seeds enclosed in an ovary and is characterized by the possession of fruits and flowers






10. Living or active in the absence of free oxygen; pertaining to respiration that is independent of oxygen






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






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






13. Fluid skeleton of annelids






14. A substance that prevents appreciable changes in pH in solutions to which small quantities of acids or bases are added






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






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






17. An undifferentiated - growing region of a plant that is constantly undergoing cell division and differentiation






18. A unit of heat; the amount of heat required to raise the temperature of one gram of water by one degree centigrade






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






20. A hydrogen carrier containing iron that functions in many cellular processes - including respiration






21. A ring-shaped muscle that is capable of closing a tubular opening by constriction






22. The inner layer of an organ surrounded by the cortex






23. 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






24. An emulsifying agent secreted by the liver






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






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






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






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






29. Living - as in living organisms in the environment






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






31. The extraembryonic membrane in birds - reptiles and mammals that surrounds the embryo - forming an amniotic sac






32. The sensory organ of the inner ear of mammals; it is coiled and contains the organ of corti






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






34. In plants - the tissue between the epidermis and the vascular cylinder in the roots and stems of plants; in animals - the outer tissue of some organs






35. A tube connecting the ovaries and the uterus






36. A mitotic stage in which nuclei reform and nuclear membrane reappears






37. Self-digestion occurring in plant and animal tissues - particularly after they have ceased to function properly






38. A plant growth hormone






39. The separation of some members of a population from the rest of their species; prevents interbreeding and may lead to the development of a new species






40. An invertebrate animal phylum in which animals possess a single alimentary opening and tentacles with stinging cells






41. A plant that lives on another plant mensalistically






42. The phylum to which segmented worms belong






43. A mitotic or meiotic stage in which the chromosomes become visible and during which the spindle fibers form; synapsis takes place during the first meiotic prophase






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






45. A disease-causing organism






46. A change from a diploid nucleus to a haploid nucleus - as in meiosis






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






48. Protective immunity to a disease in which the individual produces antibodies as a result of previous exposure to the antigen






49. The external opening of the trachea in insects






50. A hormone produced by the Islets of Langerhans in the pancreas