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. A multidirectional sensory system of lower animals such as the hydra - consisting of nerve fibers spread throughout the ectoderm






2. A marine biome typical of the open seas






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






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






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






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






7. Pertaining to the head






8. The failure of some homologous pairs of chromosomes to separate following meiotic synapsis






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






10. The innermost embryonic germ layer that gives rise to the lining of the alimentary canal and to the digestive and respiratory organs






11. The enzyme that acts upon lactose






12. Refers to protective covering






13. The veins that carry blood from the digestive organs to the liver






14. A space in the body






15. The removal of an amino group from an organism - particularly from an amino acid






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






17. Agent that induces mutations; typically carcinogenic






18. Fluid in the eye - found between the cornea and the lens






19. The thin - bent part of the renal tubule that is the site of the counter-current flow and the sodium gradient






20. 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






21. A hormonal secretion of the adrenal cortex






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






23. The sensory branch of each spinal nerve






24. An organism that requires oxygen for respiration and can live only in the presence of oxygen






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






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






27. A period in the development of animals between the embryo and adult stages; starts at hatching and ends in metamorphasis






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






29. Living - as in living organisms in the environment






30. An anterior pituitary hormone that stimulates the follicles in females and the function of the seminiferous tubules in males






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






32. An air sac in the lung; the site of respiratory exchange - involving diffusion of oxygen and carbon dioxide between the air in the alveolus and the blood in the capillaries






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






34. A sensory organ capable of detecting light






35. The fluid that remains after fibrinogen is removed from the blood plasma of vertebrates






36. A cell that divides to form the polar body and the secondary oocyte






37. Technology that allows for manipulation of genetic material






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






39. A constituent of the plasma of the blood of vertebrates; it is converted to thrombin by thrombokinase in the presence of calcium ions - thus contributing to the clotting of blood






40. Compounds in bile that aid in emulsification






41. Relating to the lung






42. Part of the nephron in the kidney; involved in excretion


43. A flesh-eating animal; a holotrophic animal that subsists on other animals or parts of animals






44. One of the primary tissues of the embryo






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






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






47. The recycling of carbon from decaying organisms for use in future generations






48. The process by which environmental patterns or objects presented to a developing organism during a "critical period" of its growth is accepted as a permanent element of its behavior






49. The outer - transparent layer of the eye






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