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






2. Asexual reproduction; in this process - the parent organism splits into two equal daughter cells






3. A mucus-secreting membrane






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






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






6. 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






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






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






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






10. An emulsifying agent secreted by the liver






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






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






13. A structure found between the cerebral hemispheres of vertebrates; secretes melatonin






14. Small - disc-shaped bodies in the blood that play a chief role in coagulation






15. Involuntary muscle






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






17. Organism that produces its own food; first stage in the food chain






18. All the members of a given species inhabiting a certain locale






19. Movement of amoeba






20. Pertaining to a type of gland that releases its secretion through a duct






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






22. The outer - transparent layer of the eye






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






24. An embryonic structure that gives rise to the central nervous system






25. The outer layer of cerebral hemispheres in the forebrain - consisting of gray matter






26. Pertaining to the head






27. A membrane that envelopes the nucleus and separates it from the cytoplasm; present in eukaryotes






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






29. The primary germ layer - developed from the lip of the blastopore - that gives rise to the skeleton - the circulatory system and many organs and tissues between the epidermis and the epithelium






30. A carbohydrate that is composed of many monosaccharide units joined together






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






32. A terrestrial habitat zone that is characterized by large tracts of coniferous forests - long and cold winters - and short summers






33. The law by which genes on different chromosomes are inherited independently of each other






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






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






36. An organ centrally involved in the human digestive system






37. Describes organisms that are cooperative in action - such as hormones or other growth factors that reinforce each other's activity






38. A lymph tubule located in the villus that absorbs fatty acids






39. Protein threads that form in the blood during clotting






40. An anucleate red blood cell that contains hemoglobin






41. A waxy protective layer secreted by the outer surface of plants - insects - etcetera






42. An underground stem






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






44. The ways in which organisms regulate their internal heat






45. Usually referred to as ACTH and secreted by the anterior lobe of the pituitary gland; stimulates the adrenal cortex to produce its characteristic hormones






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






47. A type of nuclear division that is characterized by complex chromosomal movement and the exact duplication of chromosomes; occurs in somatic cells






48. An association of homologous chromosomes during the first meiotic division






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






50. An "emergency" hormone stimulated by anger or fear; increase blood pressure and heart rate in order to supply the emergency needs of the muscles