c. How is excretion in plants useful to
human beings?
ystem
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Excretion in plants results in the production of various kinds of excreta which are waste for the plant but are equally important for human use. ... Oxygen which is an excretory product of photosynthesis is an absolute requirement for human beings to survive on earth.
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Answer:
it provides oxygen
it give us food
it use to make medicines
it give fruit
it give flowers
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