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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 biome located between the polar region and the tiaga






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






3. The stable - biotic part of the ecosystem in which populations exist in balance with each other and with the environment






4. The outermost surface of an organism






5. 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






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






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






8. One of a pair of kidney-shaped cells that surround a stomate and regulate the size of the stomate in a leaf






9. The cavity between the lungs and the wall of the chest






10. The site of most digestion of nutrients and absorption of digested nutrients






11. A chemical action that releases energy from glucose to form ATP






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






13. One of the primary tissues of the embryo






14. The production of a number of different species from a single ancestral species






15. Changes in genes that are inherited






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






17. The posterior part of the brain that controls the rate of breathing and other autonomic functions






18. A nitrogenous base such as adenine or guanine; when joined with sugar or phosphate - a component of nucleotides and nucleic acids






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






20. An organism that utilizes the energy of inorganic materials such as water and carbon dioxide or the sun to manufacture organic materials






21. An organic cofactor required for enzyme activity






22. The microspore of a seed plant






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






24. One of many tubules that absorb tissue fluid and return it to the bloodstream via the lymphatic system






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






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






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






28. The final stages of protein synthesis in which the genetic code of nucleotide sequences is translated into a sequences of amino acids






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






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






31. Related to the sense of smell






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






33. A flowering plant; a plant of the class Angiospermae that produces seeds enclosed in an ovary and is characterized by the possession of fruits and flowers






34. A flowering plant with simple dry fruit - characterized by nodes on their roots that contain nitrogen-fixing bacteria






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






36. A marine biome typical of the open seas






37. Self-digestion occurring in plant and animal tissues - particularly after they have ceased to function properly






38. The thin - bent part of the renal tubule that is the site of the counter-current flow and the sodium gradient






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






40. A nerve fiber






41. Asexual reproduction; in this process - the parent organism splits into two equal daughter cells






42. Fluid excreted by the kidney containing urea - water - salts - etc






43. Encompasses the brain and the spinal cord






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






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






46. 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






47. A nuclear protein of chromosomes that stains readily






48. The central tissue of a stem - used for food storage






49. A group of populations that can interbreed






50. Protein threads that form in the blood during clotting