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 outermost - extra-embryonic membrane of reptiles and birds






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






3. The ability of an organism to contribute its alleles and therefore is phenotypic traits to future generations






4. An accumulation of axons within the CNS that is white because it is fatty - myelin sheath






5. Describes arthropods and other animals whose skeletal or supporting structures are outside the skin






6. Pertaining to the head






7. A terrestrial habitat zone that is characterized by large tracts of coniferous forests - long and cold winters - and short summers






8. The study of the evolutionary descent and interrelations of groups of organisms






9. Organelles that serve as specialized containers for metabolic reactions






10. Tissue formed by the differentiation of cambium that causes a growth in width of a plant system






11. Passively floating or drifting flora and fauna of a body of water; consists mainly of microscopic organisms






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






13. A thyroid deficiency that results in stunted growth and feeblemindedness






14. The triploid tissue in some seeds that contains stored food and is formed by the union of one sperm nucleus with two nuclei of the female's gametophyte






15. The uppermost portion of pistil upon which pollen grains alight






16. A hormonal secretion of the adrenal cortex






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






18. A stage of mitosis; chromosomes line up at the equator of the cell






19. The outer - transparent layer of the eye






20. A stomach enzyme that partially digests proteins






21. The sensory branch of each spinal nerve






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






23. Functional urinary tubules responsible for excretion in the kidney of vertebrates






24. An individual that is heterozygous for only one trait






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






26. A female sex hormone secreted by the follicle






27. Deoxyribonucleic acid; found in cell nucleus - its basic unit is the nucleotide; contains coded genetic information; can replicate on the basis of heredity






28. A stage of embryonic development characterized by the differentiation of the cells into the ectoderm and endoderm germ layers and by the formation of the archenteron






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






30. The largest portion of the human brain; it is believed to be the center of intelligence - conscious thought and sensation






31. Any chromosome that is not a sex chromosome






32. Protein threads that form in the blood during clotting






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






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






35. The largest artery; carries blood from the left ventricle






36. The large intestine






37. Agent that induces mutations; typically carcinogenic






38. The phylum to which segmented worms belong






39. A mutation involving the addition or loss of nucleotides






40. The physical appearance or makeup of an individual - as opposed to its genetic makeup






41. The separation of homologous pairs of chromosomes following meiotic synapsis






42. A protein compound containing iron that is found in red blood cells






43. Nonliving - as in the physical environment






44. 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






45. A progressive change from which a permanently more mature or advanced state results






46. A pouched mammal - such as the kangaroo or opossum






47. A ductless gland that secretes hormones directly into the bloodstream






48. The production of daughter cells by means other than the sexual union of gametes (as in budding and binary fission)






49. A digestive enzyme of the saliva that turns starch into maltose (salivary amylase)






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