Plants don’t have the energy budget to support a heart and muscles to move around. Nor does their energy budget allow a brain with a nervous system.
A plant can typically convert 2–3% of the incoming sunlight to useful energy, and only when the sun shines.
Instead, they have evolved other strategies to survive, which are extremely successful since there are plants everywhere. 80% of the total bio mass are plants.
A few parasite plants feed on other plants, and some are even carnivores by using elaborate traps to catch prey, and then slowly dissolving it.
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