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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 type of virus that can destroy bacteria by infecting - parasitizing and eventually killing them






2. A jellyfish






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






4. A cell in the retina that is sensitive to weak light






5. Pertaining to the head






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






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






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






9. A process of formation of ova






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






11. An organism that obtains its nutrients from dead organisms






12. The contraction of the atria or ventricles of the heart






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






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






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






16. A flesh-eating animal; a holotrophic animal that subsists on other animals or parts of animals






17. A sensory organ capable of detecting light






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






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






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






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






22. The area of medulla that regulates the rate of breathing






23. Requiring free oxygen from the atmosphere for normal activity and respiration






24. Semen






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






26. A response by an organism to the duration and timing of light and dark conditions






27. The recycling of carbon from decaying organisms for use in future generations






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






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






30. The fist stage of protein synthesis - in which the information coded in the DNA base is transcribed onto a strand of mRNA






31. A plant that lives on another plant mensalistically






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






33. A pyrimidine found in RNA (but not DNA); pairs with DNA adenine






34. The movement of particles from one place to another as a result of their random motion






35. A network or mesh of fibrils - fibers or filaments






36. A dominant allele suppresses the expression of the other member of an allele pair when both members are present






37. The organelle that provides mechanical support and carries out motility functions for the cell






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






39. A four-letter code made up of the DNA nitrogen bases A - T - G and C; each chromosome is made up of thousands of these bases






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






41. The living matter of a cell - located between the cell membrane and the nucleus






42. The class of free-living flatworms






43. A process of photosynthesis in which water is split into H+ and OH-; the hydrogen ion is then joined to NADP






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






45. A blood vessel that carries blood back to the heart from the capillaries






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






47. A pair of chromosome pairs present during the first metaphase of meiosis






48. 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






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






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







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