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






2. A grouping of neuron cell bodies that acts as a coordinating center






3. The separation of homologous pairs of chromosomes following meiotic synapsis






4. The enzyme that acts upon lactose






5. A bony or chitinous case or shield covering the back or part of the back of an animal (shell of a crab)






6. A chemical messenger that is secreted by one part of the body and carried by the blood to affect another part of the body - usually a muscle or gland






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






8. The hormone secreted by the corpus luteum of vertebrates and the placenta of mammals; its function is to maintain the endometrium






9. A hormone that ripens fruit and induces aging






10. A symbiotic relationship from which both organisms involved derive some benefit






11. A group of populations that can interbreed






12. A tract of nerve fibers connecting the two cerebral hemispheres






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






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






15. The creation of certain strains of specific traits through control of breeding






16. A structure of the eye that focuses images on the retina by changing its convexity






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






18. The evaporation of water from leaves or other exposed surfaces of plants






19. A tube one cell thick that carries blood from artery to vein; the site of material exchange between the blood and tissues of the body






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






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






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






23. 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)






24. One of the paired lateral divisions of the forebrain






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






26. The system of naming an organism by its genus and species name






27. An antipathogenic substance (e.g. - penicillin)






28. Bacteria that are rod shaped






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






30. Three membranes that envelop the brain and spinal cord (pia mater - dura mater and arachnoid)






31. An endocrine gland located in the neck that produces thyroxin






32. One of a pair of kidney-shaped cells that surround a stomate and regulate the size of the stomate in a leaf






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






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






35. A network - particularly of nerve or blood vessels






36. The thigh bone of vertebrates






37. Daily cycles of behavior






38. An emulsifying agent secreted by the liver






39. A marine biome typical of the open seas






40. The enzyme released from the blood platelets in vertebrates during clotting






41. Cytoplasmic bodies within a plant cell that are often pigmented






42. A pyrimidine found in RNA (but not DNA); pairs with DNA adenine






43. One of many tubules that absorb tissue fluid and return it to the bloodstream via the lymphatic system






44. Secreted by the anterior pituitary gland - this hormone stimulates the conversion of a follicle into the corpus luteum and the secretion of progesterone by the corpus luteum






45. The large intestine






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






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






48. A motile - multinucleate mass of protoplasm resulting from fusion of uninuclear amoeboid cells






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






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