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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. Describes an individual that has the same gene for the same trait on each homologous chromosome






2. Describes an individual that possesses two contrasting alleles for a given trait






3. A bone of the upper arm






4. Related to the sense of smell






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






6. The thigh bone of vertebrates






7. A nuclear protein of chromosomes that stains readily






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






9. Protein threads that form in the blood during clotting






10. The study of organisms in relation to their environment






11. The genetic makeup of an organism without regard to physical appearance






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






13. A change from a diploid nucleus to a haploid nucleus - as in meiosis






14. Describes structures that have similar function but different evolutionary origins; e.g. - a bird's wing and a moth's wing






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






16. Living - as in living organisms in the environment






17. One of a group of compounds that is identical in a atomic composition - but different in structure and arrangement






18. The enzyme released from the blood platelets in vertebrates during clotting






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






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






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






22. A behavioral or biological change that enables an organism to adjust to its environment






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






24. A typical coelenterate individual with a hollow tubular body whose outer ectoderm is separated from its inner ectoderm by mesoglea






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






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






27. The phylum of sponges






28. Pertaining to the head






29. The orientation of cells or organisms in relation to chemical stimuli; the growth or movement response of organisms to chemical stimuli






30. Membranous organelles involved in the storage and modification of secretory products






31. The science of classification of living things






32. A 12-carbon sugar that is formed by the union of two glucose units (a disaccharide)






33. A duct that carries urine from the kidneys to the bladder






34. A bony or chitinous case or shield covering the back or part of the back of an animal (shell of a crab)






35. 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






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






37. Organism that produces its own food; first stage in the food chain






38. Usually referred to as ACTH and secreted by the anterior lobe of the pituitary gland; stimulates the adrenal cortex to produce its characteristic hormones






39. The elimination of metabolic waster matter






40. A unit of heat; the amount of heat required to raise the temperature of one gram of water by one degree centigrade






41. A portion of the CNS consisting of cytons (cell bodies) - their dendrites and synaptic connections






42. A substance that participates in the clotting of blood in vertebrates






43. An undifferentiated - growing region of a plant that is constantly undergoing cell division and differentiation






44. The separation of some members of a population from the rest of their species; prevents interbreeding and may lead to the development of a new species






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






46. The removal of an amino group from an organism - particularly from an amino acid






47. The extraembryonic membrane in birds - reptiles and mammals that surrounds the embryo - forming an amniotic sac






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






49. One of a class of organic compounds that is composed of many amino acids; contains C - H - O and N






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