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SWOD Quiz #3:

2/14/08

QuestionAnswer
neuron a nerve cell that is specialized to receive and conduct electrical impulses
emigration the moving of an individual or group out of an area
omnivore eats plants and animals
gestation in mammals, the process of carrying young from fertilization to birth
oncogene a gene that induces cancer, or uncontrolled cell proliferation
succession a series of stages a community goes through before it reaches its most stable stage
biosphere the part of the earth where life exists; includes all of the living organisms on earth
community a group of various species that live in the same habitat and interact with each other
population a group of organisms of the same species that live in a specific geographical area and interbreed
permafrost in arcitc regions, the permanently frozen layer of soil or subsoil
acclimation an organism's change in response to a change in the organisms environment
ecosystem a community of organisms and their abiotic environment
appendages a structure that extends from the main body, such as a limb, tentacle, fin, or wing
fermentation the breakdown of carbohydrates by enzymes, bacteria, yeasts, or mold in the absence of oxygen
prehensile can grasp objects, as in primate's hand, foots, or tail
trophic level an organism's relative position in a sequence of energy transfers in a feed chain or food pyramid
leucocyte a white blood cell
phylogeny the evolutionary history of a species or taxonomic group; the relationships by ancestry among taxonomic groups
viviparous an organism whose offspring develop within the mother's body and are born alive
opposable thumb in primates, a thumb that can touch and move in opposition to the other fingers of the hand
Created by: asc1892
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