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






2. An accumulation of axons within the CNS that is white because it is fatty - myelin sheath






3. The womb in which the fetus develops






4. A family tree depicting the inheritance of a particular genetic trait over several generations






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






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






7. The individual differences of form among the members of a species






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






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






10. Any organism that is the victim of a parasite






11. An enzyme from the pancreas that digests proteins in the small intestine






12. An endocrine gland of vertebrates - usually paired - and located near or within the thyroid that secretes parathormone - which controls the metabolism of calcium






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






14. A lateral region of the forebrain






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






16. A flexible - supportive rod running longitudinally through the dorsum ventral to the nerve cord; found in lower chordates and in the embryos of vertebrates






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






18. Small - disc-shaped bodies in the blood that play a chief role in coagulation






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






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






21. A process by which the cytoplasm and the organelles of the cell divide; the final stage of mitosis






22. A structure that arises during mitosis and helps separate the chromosomes; composed of tubulin






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






24. An enzyme that acts upon maltose and converts it into glucose






25. Describes a fluid that has the same osmotic pressure as a fluid it is compared to






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






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






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






29. A nerve cell






30. Waves of contraction and relaxation passing along a tubular structure - such as the digestive tube






31. The reproductive organ that produces sex cells






32. The part of the flower that bears the female gametophyte






33. The pollination of the pistil of one flower with pollen from the stamen of a different flower of the same species






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






35. Adenosine diphosphate (ADP) and adenosine triphosphate (ATP) - which are energy storage molecules






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






37. A stomach enzyme that partially digests proteins






38. A hormonal secretion of the adrenal cortex






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






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






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






42. A green pigment that performs essential functions as an electron donor and light "entrapper" in photosynthesis






43. The coiled part of the sperm duct - adjacent to the testes in mammals






44. The outermost surface of an organism






45. A specialized structure that leads to the digestive tract of a developing organism and provides it with food during early development






46. The process of breaking down large organic molecules into smaller ones






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






48. Any physical feature that prevents the ecological niches of different organisms from overlapping






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






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