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






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






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






4. The system of naming an organism by its genus and species name






5. Occurs when a segment of genetic material on a chromosome becomes reversed






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






7. The loss of all or part of a chromosome






8. The basal branch of each spinal nerve; carries motor neurons






9. An organic catalyst and protein






10. Encompasses the brain and the spinal cord






11. A mall sex hormone (e.g. - testosterone)






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






13. The swelling at the end of an axon






14. Pertaining to a restricted locality; ecologically - occurring only in one particular region






15. The ability of certain animals to regrow missing body parts






16. The space between the mesodermal layers that forms the body cavity of some animal phyla






17. The process by which carbohydrates are formed through chemical energy; found in bacteria






18. The portion of seed plant embryo above the cotyledon






19. The cell body of a neuron






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






21. The conversion of digested foods and other materials into forms usable by the body (i.e. - the conversion of amino acids into proteins)






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






23. Describes two or more structures that have similar forms - positions and origins despite the differences between their current functions






24. The solid ball of cells the results from cleavage of an egg; a solid blastula that precedes the blastula stage






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






26. The biome located between the polar region and the tiaga






27. Random evolutionary changes in the genetic makeup of a population






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






29. A hormone that regulates water reabsorption






30. Movement of amoeba






31. A five carbon sugar that has one oxygen atom less than ribose; a component of DNA






32. The female gamete; it is nonmotile - large in comparison to male gametes - and stores nutrients






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






34. Living - as in living organisms in the environment






35. A white or colorless - amorphous - horny substance that forms part of the outer integument of insects - crustaceans and some other invertebrates; it also occurs in certain fungi






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






37. The outer layer of cerebral hemispheres in the forebrain - consisting of gray matter






38. 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






39. Three membranes that envelop the brain and spinal cord (pia mater - dura mater and arachnoid)






40. The division in animal cell cytoplasm caused by the pinching in of the cell membrane






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






42. A muscular valve regulating the flow of food from the stomach to the small intestine






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






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






45. The anaerobic respiration of carbohydrates






46. An individual that is heterozygous for only one trait






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






48. The separation of some members of a population from the rest of their species; prevents interbreeding and may lead to the development of a new species






49. The hind portion of the forebrain of vertebrates






50. A plant that has two seed leaves or cotyledons