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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. The triploid tissue in some seeds that contains stored food and is formed by the union of one sperm nucleus with two nuclei of the female's gametophyte






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






3. An ion with a positive charge - or an ion that migrates towards the cathode (negative electrode) in an electric field






4. Pertains to a gene or characteristic that is masked when a dominant allele is present






5. The process of forming the sperm cells from primary spermatocytes






6. The chamber in the alimentary canal of certain vertebrates located below the large intestine - into which the ureter and reproductive organs empty (as in frogs)






7. The ability to respond to a stimulus






8. Relating to the lung






9. The more muscular chamber(s) of the heart that pump blood to the lungs and to the rest of the body






10. The central tissue of a stem - used for food storage






11. Outgrowths of a root's epidermal cells that allow for greater surface area for absorption of nutrients and water






12. A hormonal secretion of the adrenal cortex






13. The phylum of sponges






14. An organelle that contains enzymes that aid in intracellular digestion






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






16. The stage in mitosis that is characterized by the migration of chromatids to opposite ends of the cell; the stage in meiosis during which homologus pairs migrate (Anaphase I) - and the stage in meiosis during which chromatids migrate to different end






17. A neuron that picks up impulses from receptors and transmits them to the spinal cord






18. A body fluid that flows in its own circulatory fluid in lymphatic vessels separate from blood circulation






19. An organism that possesses one or more whiplike appendages called flagella






20. The study of the evolutionary descent and interrelations of groups of organisms






21. The cellular layer that covers external and internal surfaces






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






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






24. The ways in which organisms regulate their supply of water






25. A progressive change from which a permanently more mature or advanced state results






26. The external opening of the trachea in insects






27. The orderly process by which one biotic community replaces another until a climax community is established






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






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






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






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






32. A wall composed of cellulose that is external to the cell membrane in plants; it is primarily involved in support and in the maintenance of proper internal pressure






33. One of the paired lateral divisions of the forebrain






34. A form of anaerobic respiration found in yeast and bacteria






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






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






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






38. The basal branch of each spinal nerve; carries motor neurons






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






40. A dense fluid within the chloroplast in which CO2 is converted into sugars in photosynthesis






41. A four-letter code made up of the DNA nitrogen bases A - T - G and C; each chromosome is made up of thousands of these bases






42. A large molecule that is composed of many similar molecule units






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






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






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






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






47. A group of populations that can interbreed






48. Random evolutionary changes in the genetic makeup of a population






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






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







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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