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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 part of the hindbrain located in the brain stem






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






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






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






5. The portion of a DNA molecule that serves as a unit of heredity; found on the chromosome






6. Any chromosome that is not a sex chromosome






7. All the members of a given species inhabiting a certain locale






8. 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






9. Chemical groups attached to carbon skeletons that give compounds their functionality






10. The loss of all or part of a chromosome






11. An organ that stores urine temporarily before it is excreted






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






13. A microscopic - whiplike filament that serves as a locomotor structure in flagellate cells






14. The phylum of sponges






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






16. A hormone produced by the Islets of Langerhans in the pancreas






17. The sac in the ovary in which the egg develops






18. The male gonads that produce sperm and male hormones






19. A tube connecting the ovaries and the uterus






20. A ductless gland in upper chest region concerned with immunity and the maturation of lymphocytes






21. The sensory organ of the inner ear of mammals; it is coiled and contains the organ of corti






22. An embryonic structure that gives rise to the central nervous system






23. An organic catalyst and protein






24. Globular proteins produced by tissues that destroy or inactivate antigens






25. A mitotic stage in which nuclei reform and nuclear membrane reappears






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






27. A plant that belongs to the class of seed plants in which the seeds are not enclosed in an ovary; includes the conifers






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






29. A structure that extends from the trunk of an organism and is capable of active movements






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






31. Hormone active in osmoregulation; a mineral corticoid produced by the adrenal cortex; stimulates reabsorption of Na+ and secretion of K+






32. The ability to respond to a stimulus






33. A purine (nitrogenous base) component of nucleotides and nucleic acids; links with cytosine in DNA






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






35. The creation of certain strains of specific traits through control of breeding






36. The biome located between the polar region and the tiaga






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






38. Semen






39. Fluid skeleton of annelids






40. The part of the flower that produces pollen






41. A nitrogen base that is present in nucleotides and nucleic acids; it is paired with guanine






42. 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






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






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






45. A vacuole in the cytoplasm in which digestion takes place (in protozoans)






46. An animal phylum in which all members have a notochord - dorsal nerve cord and pharyngeal gill slits at some embryonic stage; includes the Cephalochordata and the Vertebrates






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






48. The law by which genes on different chromosomes are inherited independently of each other






49. Pertaining to a subdivision of the autonomic nervous system of vertebrates






50. In mammals - the slitlike opening formed by the vocal folds in the larynx