Differences between coordination of the humans eye's internal response to light and that of tropic movement of the flowering plant in response to light

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Explanation:

Light falling in the human eye is coordinatedby pupil. The amount of light entering the eyeis controlled by a reflex action. The size of the pupil changes in response to bright or dim light. ... In plant shoots, the role of auxin is to cause a positive phototropism, i.e. to grow the plant towards the light.

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the food storage products of chrysophytes are oils or the polysaccharide laminarin.   formerly classified as plants, the chrysophytes contain the photosynthetic pigments chlorophyll a and c all but the yellow-green algae also contain the carotenoid pigment fucoxanthin.