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






2. A pair of chromosome pairs present during the first metaphase of meiosis






3. The swelling at the end of an axon






4. The process by which water and dissolved substances pass through a membrane






5. The study of organisms in relation to their environment






6. Membranous organelles involved in the storage and modification of secretory products






7. A plant that lives on another plant mensalistically






8. The ability to respond to a stimulus






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






10. A cell resulting from the fusion of gametes






11. An antigen in blood; can cause erythroblastosis fetalis when the mother is Rh- and the fetus is Rh+






12. A kingdom of unicellular living organisms that are neither animals nor plants; includes some groups of algae - slime molds and protozoa






13. 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






14. The part of the body of an animal that is between the neck or head and the abdomen






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






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






17. A response by an organism to the duration and timing of light and dark conditions






18. A process by which the cell membrane is invaginated to form a vesicle which contains extracellular medium






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






20. Fluid skeleton of annelids






21. The transformation of an immature animal into an adult; a change in the form of an organ or structure






22. A blood vessel that carries blood away from the heart






23. The portion of alimentary canal connecting the pharynx and the stomach






24. A structure in animal cells containing centrioles from which the spindle fibers develop






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






26. The process by which a certain function is regulated by the amount of the substance it produces






27. A section of the posterior forebrain associated with the pituitary gland






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






29. An abbreviation of nicotinamide-adenine-dinucleotide-phosphate - also called TPN; an organic compound that serves as an oxidation-reduction molecule






30. A substance that participates in the clotting of blood in vertebrates






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






32. 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






33. A network - particularly of nerve or blood vessels






34. The hind portion of the forebrain of vertebrates






35. The outer - transparent layer of the eye






36. The male gonads that produce sperm and male hormones






37. A reproductive cell






38. Plant growth stimulated by light (stem: + - towards light; root: - - away from light)






39. A blood clot that is formed within a blood vessel






40. A marine biome; a region on the continental shelf that contains an ocean area with depths of up to 600 ft






41. One of a group of compounds that is identical in a atomic composition - but different in structure and arrangement






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






43. Multicellular organism






44. The area of medulla that regulates the rate of breathing






45. The enzyme that acts upon lactose






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






47. Describes an organism that lives symbiotically with a host; this host neither benefits nor suffers from the association






48. A kind of microorganism that is between a virus and a bacterium; parasitic within the cells of insects and ticks






49. A nitrogenous base such as adenine or guanine; when joined with sugar or phosphate - a component of nucleotides and nucleic acids






50. A stage of mitosis; chromosomes line up at the equator of the cell