Question

1. Discuss briefly about origin of leaves
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Answer 1

Answer:

Leaf, in botany, any usually flattened green outgrowth from the stem of a vascular plant. As the primary sites of photosynthesis, leaves manufacture food for plants, which in turn ultimately nourish and sustain all land animals. Botanically, leaves are an integral part of the stem system.

Answer 2

Answer:

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Explanation:

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