Test your basic knowledge |

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






2. Relating to the lung






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






4. One or two or more types of genes - each representing a particular trait; many alleles exist for a specific gene locus






5. A group of populations that can interbreed






6. A network - particularly of nerve or blood vessels






7. A cell resulting from the fusion of gametes






8. In mammals - a flap of tissue above the glottis; it folds back over the glottis in swallowing to close the air passages of the lungs; contains elastic cartilage






9. The liquid part of blood






10. An organism that possesses both the male and the female reproductive organs






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






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






13. Nonliving - as in the physical environment






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






15. The most anterior portion of the small intestine of vertebrates - adjacent to the stomach; the continuation of the stomach into which the bile duct and pancreatic duct empty






16. The small granular body within the centrosome to which the spindle fibers attach






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






18. Encompasses the brain and the spinal cord






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






20. Technology that allows for manipulation of genetic material






21. The place of attachment of the mitotic fiber to the chromosome






22. In mitosis of higher plants - the structure that forms between the divided nuclei of the two daughter cells and eventually becomes the cell wall






23. Describes a fluid that has a lower osmotic pressure than a fluid it is compared to






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






25. A kind of microorganism that is between a virus and a bacterium; parasitic within the cells of insects and ticks






26. A body fluid that flows in its own circulatory fluid in lymphatic vessels separate from blood circulation






27. A wall composed of cellulose that is external to the cell membrane in plants; it is primarily involved in support and in the maintenance of proper internal pressure






28. A marine biome typical of the open seas






29. The functional role and position of an organism in an ecosystem; embodies every aspect of the organism's existence






30. The extraembyonic membrane of birds - reptiles and mammals that serves as an area of gaseous exchange and as a site for the storage of noxious excretion products






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






32. A cell that divides to form two secondary spermatocytes






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






34. Structures in the testes that produce sperm and semen






35. A fluid-filled sensory apparatus that aids balance and hearing






36. A lateral region of the forebrain






37. A space in the cytoplasm of a cell that contains fluid






38. The chamber in the alimentary canal of certain vertebrates located below the large intestine - into which the ureter and reproductive organs empty (as in frogs)






39. A hormone that regulates water reabsorption






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






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






42. The pressure exerted by the contents of a cell against the cell membrane or cell wall






43. The outermost bone of the middle ear (hammer)






44. In plants - an area of undifferentiated tissue covered by embryonic leaves






45. Cycle in photosynthesis that reduces fixed carbon to carbohydrates through the addition of electrons ("dark cycle")






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






47. The inner portion of the cytoplasm of a cell or the portion that surrounds the nucleus






48. A transmitter substance released from the axons of nerve cells at the synapse






49. An organic compound to which hydrogen and oxygen are attached; the hydrogen and oxygen are in a 2:1 ratio; examples include sugars - starches and cellulose






50. An enlargement of the thyroid gland due to lack of iodine