Chlorophyll pigment is always green. Plant leaves and stems aren't always green because they have many pigments other than chlorophyll. Pigments are molecules that absorb specific colors of light and reflect other colors, depending on their chemical structure. The reflected colors are what give pigments their color.
I believe what you are looking for is Chemotaxis.
In this case the answer is fuel
It was plants. Plants used photosynthesis, basically the sun's energy. And other animals ate the plants, and other animals ate the animals that ate the plant.
For the answer to the question above, I think that
by courting at the full and new moon, fiddler crabs link their reproduction to times of highest tides that disperse larvae to safer, deeper waters.
Is the answer to the question
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