Carotenoids are red, orange, or yellow pigments found in many plants. usually we see these accessory pigments only in the fall. why aren't the red, orange, and yellow colors visible all year long? a) the carotenoids have much less energy than chlorophyll. b) the accessory pigments only absorb light; they do not reflect light. c) chlorophyll is more abundant in the leaves and masks the accessory pigments. d) plants only reflect wavelengths of visible light that represent the color green.
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Aneuron is stimulated with an electric pulse. the action potential is detected at a point 3.70 cm down the axon 0.0052 s later.when the action potential is detected 7.20 cm from the point of stimulation, the time required is 0.0063 s. what is the speed of the electric pulse along the axon? (why are two measurements needed instead of only one? )
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To confirm when to exclude children from school it’s recommended that you refer to guidelines from which of the following organizations
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Carotenoids are red, orange, or yellow pigments found in many plants. usually we see these accessory...
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