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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 emulsifying agent secreted by the liver






2. Deoxyribonucleic acid; found in cell nucleus - its basic unit is the nucleotide; contains coded genetic information; can replicate on the basis of heredity






3. The intake of fluid droplets into a cell






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






5. A type of nuclear division that is characterized by complex chromosomal movement and the exact duplication of chromosomes; occurs in somatic cells






6. The ability of certain animals to regrow missing body parts






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






8. The small granular body within the centrosome to which the spindle fibers attach






9. A network of membrane-enclosed spaces connected with the nuclear membrane; transports materials through the cell; can be soft or rough






10. Describes arthropods and other animals whose skeletal or supporting structures are outside the skin






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






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

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13. The division in animal cell cytoplasm caused by the pinching in of the cell membrane






14. Cytoplasmic organelles that serve as sites of respiration; a rod-shaped body in the cytoplasm known to be the center of cellular respiration






15. A structure formed by the wall of the uterus and the chorion of the embryo; serves as the area in which the embryo obtains nutrition from the parent






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






17. The liquid part of blood






18. Compounds in bile that aid in emulsification






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






20. The female gonad in animals; the base of the pistil in plants






21. One of the two strands that constitute a chromosome; chromatids are held together by the centromere






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






23. An opening in the eye whose size is regulated by the iris






24. One-thousandth of a millimeter; a unit of microscopic length






25. A space in the cytoplasm of a cell that contains fluid






26. A membrane that envelopes the nucleus and separates it from the cytoplasm; present in eukaryotes






27. Fluid skeleton of annelids






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






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






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






31. The transfer of pollen from the stamen to the pistil of the same flower






32. Multicellular organism






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






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






35. A specialized structure that controls osmotic pressure by removing water from the cell






36. A gland composed of two parts - anterior and posterior - each with its own secretions; called the "master gland" because its hormones stimulate secretions by other glands






37. A tube connecting the ovaries and the uterus






38. The pigment in rod cells that causes light sensitivity






39. A habitat zone - such as desert - grassland or tundra






40. An over secretion of thyroid that leads to high metabolism and exopthalmia goiter






41. The external opening of the trachea in insects






42. A bundle of nerve axons






43. A hormone of the thyroid that regulates basal metabolism






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






45. Fluid excreted by the kidney containing urea - water - salts - etc






46. An air duct from the middle ear to the throat that equalizes external and internal air pressure






47. The part of the nervous system that regulates the involuntary muscles - such as the walls of the alimentary canal; includes the parasympathetic and sympathetic nervous systems






48. A perforation leading from the pharynx to the outside environment that is a characteristic of chordates at one stage of their development






49. A sensory hair structure in the utriculus and the sacculus of the inner ear; orients the head with respect to gravity






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