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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 mitotic or meiotic stage in which the chromosomes become visible and during which the spindle fibers form; synapsis takes place during the first meiotic prophase






2. Technology that allows for manipulation of genetic material






3. The colored part of the eye that is capable of contracting and regulating the size of the pupils






4. A network - particularly of nerve or blood vessels






5. The study of form and structure






6. The cavity in the mammalian ovary in which the egg ripens






7. The haploid - sexual stage in the life cycle of plants






8. A ductless gland in upper chest region concerned with immunity and the maturation of lymphocytes






9. The fusion of sperm and the egg to produce a zygote






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






11. In plants - the tissue between the epidermis and the vascular cylinder in the roots and stems of plants; in animals - the outer tissue of some organs






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






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






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






15. A disease-causing organism






16. Describes organisms that are cooperative in action - such as hormones or other growth factors that reinforce each other's activity






17. One-thousandth of a millimeter; a unit of microscopic length






18. A sugar composed of two combined monosaccharides






19. The failure of some homologous pairs of chromosomes to separate following meiotic synapsis






20. A marine biome; a region on the continental shelf that contains an ocean area with depths of up to 600 ft






21. The second filial generation; offspring resulting from the crossing of individuals of the F1 generation






22. 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






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






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






25. 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)






26. Daily cycles of behavior






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






28. An opening in the eye whose size is regulated by the iris






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






30. A duct through which the urine passes from the bladder to the outside






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






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






33. An enzyme that acts upon maltose and converts it into glucose






34. A gland composed of two parts - anterior and posterior - each with its own secretions; called the "master gland" because its hormones stimulate secretions by other glands






35. The outermost surface of an organism






36. The process by which environmental patterns or objects presented to a developing organism during a "critical period" of its growth is accepted as a permanent element of its behavior






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






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






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






40. Pertaining to the head






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






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






43. The breeding of an organism with a homozygous recessive in order to determine whether an organism is homozygous dominant or heterozygous dominant for a given trait






44. A large molecule that is composed of many similar molecule units






45. A symbol that denotes the relative concentration of hydrogen ions in a solution






46. The cell body of a neuron






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






48. A compact linear organization of nerve tissues with ganglia in the CNS






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






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