Question

during night why some leaves are closed? ​

Answer 1

Answer:

Because carbon dioxide and water are exchanged through the same holes in plant leaves, a plant cannot absorb carbon dioxide without allowing water vapor to escape.

Answer 2

Answer:

hey... mate good evening

Plants that open and close their leaves in response to day and night cycles are called nyctinastic. These plants experience circadian rhythms much as humans do, only they don't sleep like humans do, they simply fold their leaves at night.

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