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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 study of the evolutionary descent and interrelations of groups of organisms






2. The solid ball of cells the results from cleavage of an egg; a solid blastula that precedes the blastula stage






3. Self-digestion occurring in plant and animal tissues - particularly after they have ceased to function properly






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






5. A flowering plant with simple dry fruit - characterized by nodes on their roots that contain nitrogen-fixing bacteria






6. The movement of particles from one place to another as a result of their random motion






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






8. The phylum to which jointed-legged invertebrates belong - including insects - arachnids and crustaceans






9. The part of the alimentary canal between the mouth and the esophagus






10. A foreign protein that stimulates the production of antibodies when introduced into the body of an organism






11. The breeding of an organism with a homozygous recessive in order to determine whether an organism is homozygous dominant or heterozygous dominant for a given trait






12. In taxonomy - a classification between species and family






13. 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






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






15. A group of populations that can interbreed






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






17. A microscopic opening located in the epidermis of a leaf and formed by a pair of guard cells






18. The portion of alimentary canal in which some protein digestion occurs






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






20. The transfer of pollen to the micropyle or to a receptive surface that is associated with an ovule (such as stigma)






21. The anaerobic respiration of carbohydrates






22. An offspring that is heterozygous for one or more gene pairs






23. Daily cycles of behavior






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






25. Cells which in the female are located between the ovarian follicles and in the male are located between the seminiferous tubules of the testes






26. An organism that obtains its nutrients from dead organisms






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






28. Describes cells (gametes) that have half the chromosome number typical of the species






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






30. A substance that is acted upon by an enzyme






31. Any movement or growth of a living organism in response to the force of gravity






32. The colored part of the eye that is capable of contracting and regulating the size of the pupils






33. A relationship in which one organism benefits at the expense of another






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






35. The smallest particle that is capable of carrying out photosynthesis; the functional unit of a chloroplast






36. Pertaining to a subdivision of the autonomic nervous system






37. An organic molecule consisting of joined phosphate - 5-carbon sugar (deoxyribose or ribose) - and a purine or a pyrimidine (adenine - guanine - uracil - thymine or cytosine)






38. The cell body of a neuron






39. The class of free-living flatworms






40. The vascular tissue of a plant that transports organic materials (photosynthetic products) from the leaves to other parts of the plant






41. A specialized structure that carries out particular functions for eukaryotic cells






42. 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






43. The female gamete; it is nonmotile - large in comparison to male gametes - and stores nutrients






44. One or two or more types of genes - each representing a particular trait; many alleles exist for a specific gene locus






45. The enzyme that acts upon lactose






46. An excretory product of protein metabolism






47. 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)






48. 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






49. An organism that utilizes the energy of inorganic materials such as water and carbon dioxide or the sun to manufacture organic materials






50. A reproductive cell