Biology, 12.07.2019 15:00 Leggett3146
Two theories together account for color vision. in stage one, the helmholtz trichromatic theory shows that the eye contains while in stage two, hering's theory accounts for the nervous system's which are activated by one color light, and inhibited by the opposite color light.
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Which symbols below represent the ions found in the glass of water ? a. oh- and h+ b. co2 and o2 c. o2 and h2 d. nh3- and h+
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Many animals cannot sweat to maintain a stable body temperature. what is one other way animals can cool down?
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Why do mountaineers become breathless as they reach high altitudes
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