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. Genetic blending; each allele exerts some influence on the phenotype






3. The thigh bone of vertebrates






4. A fat or oil






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






6. Agent that induces mutations; typically carcinogenic






7. A blood clot that is formed within a blood vessel






8. A resistance to disease developed through the immune system






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






10. The male gonads that produce sperm and male hormones






11. The portion of seed plant embryo above the cotyledon






12. Protective immunity to a disease in which the individual produces antibodies as a result of previous exposure to the antigen






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






14. Organism that produces its own food; first stage in the food chain






15. A marine biome typical of the open seas






16. Living - as in living organisms in the environment






17. A relationship in which one organism benefits at the expense of another






18. A hormone that stimulates plant stem elongation






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






20. A kingdom of unicellular living organisms that are neither animals nor plants; includes some groups of algae - slime molds and protozoa






21. A plant growth hormone






22. A flexible - supportive rod running longitudinally through the dorsum ventral to the nerve cord; found in lower chordates and in the embryos of vertebrates






23. A plastid containing chlorophyll






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






25. A behavioral or biological change that enables an organism to adjust to its environment






26. The extraembryonic membrane in birds - reptiles and mammals that surrounds the embryo - forming an amniotic sac






27. A decimal fraction that represents the presence of an allele for all members of a population that have a particular gene locus






28. A process by which the cytoplasm and the organelles of the cell divide; the final stage of mitosis






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






30. A tube connecting the ovaries and the uterus






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






32. A plant that has two seed leaves or cotyledons






33. The part of the male reproductive organ (the stamen) that produces and stores pollen






34. The primary germ layer - developed from the lip of the blastopore - that gives rise to the skeleton - the circulatory system and many organs and tissues between the epidermis and the epithelium






35. Different relationships that are formed in proteins between the original sequence of amino acids and more complex three-dimensional compounds






36. The part of the neuron that transmits impulses to the cell body






37. The elimination of metabolic waster matter






38. An invertebrate animal phylum in which animals possess a single alimentary opening and tentacles with stinging cells






39. A process of formation of ova






40. An offspring that is heterozygous for one or more gene pairs






41. The exchange of parts of homologous chromosomes during meiosis






42. A mutation in which a single nucleotide base is substituted for another nucleotide base - or an extra nucleotide base is added






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






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






45. Outgrowths of a root's epidermal cells that allow for greater surface area for absorption of nutrients and water






46. The phylum to which jointed-legged invertebrates belong - including insects - arachnids and crustaceans






47. A typical coelenterate individual with a hollow tubular body whose outer ectoderm is separated from its inner ectoderm by mesoglea






48. There are two kinds of sex chromosomes - X and Y; XX signifies a female and XY signifies a male






49. Describes cells (gametes) that have half the chromosome number typical of the species






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