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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 invertebrate animal phylum in which animals possess a single alimentary opening and tentacles with stinging cells






2. Unicellular organism with simple cell structure






3. A process of asexual reproduction in which the offspring develop from an outgrowth of the plant or animal






4. The womb in which the fetus develops






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






6. The navel






7. Describes a fluid that has a higher osmotic pressure than another fluid it is compared to






8. A mutation involving the addition or loss of nucleotides






9. A small projection in the walls of the small intestine that increases the surface area available for absorption






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






11. 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






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






13. The study of form and structure






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






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






16. A plant that has two seed leaves or cotyledons






17. The innermost embryonic germ layer that gives rise to the lining of the alimentary canal and to the digestive and respiratory organs






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






19. Vascular tissue of the plant that aids in support and carries water






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






21. Involuntary muscle






22. Adrenaline






23. A simple sugar






24. The kind of bond formed when two amino acid units are jointed end to end






25. 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)






26. A hormone that regulates water reabsorption






27. The tenth cranial nerve that innervates digestive organs - heart and other areas






28. Laws of classical genetics established through Mendel's experiments with peas






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






30. An organism that is heterozygous for two different traits






31. The intake of fluid droplets into a cell






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






33. The process by which environmental patterns or objects presented to a developing organism during a "critical period" of its growth is accepted as a permanent element of its behavior






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






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






36. The intake of food from the environment into the alimentary canal






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






38. A sex or reproductive cell that must fuse with another of the opposite type to form a zygote






39. A kind of white blood cell in vertebrates that is characterized by a rounded nucleus; involved in the immune response






40. The ability to respond to a stimulus






41. Movement of amoeba






42. A tube connecting the ovaries and the uterus






43. The outermost embryonic germ layer that gives rise to the epidermis and the nervous system






44. A form of asexual reproduction in which the egg develops in the absence of sperm






45. xylem that is no longer being used






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






47. The cavity in the mammalian ovary in which the egg ripens






48. Fluid-filled structures in the inner ear that are associated with the sense of balance






49. An organ that is not functional in an organism - but was functional at some period in its evolution






50. A process of cell division whereby each daughter cell receives only one set of chromosomes; the formation of gametes