Question

Define stomata............

Answer 1

Hey mate here is your answer
Stomata are cell structures in the epidermis of tree leaves and needles that are involved in the exchange of carbon dioxide and water between plants and the atmosphere.
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Answer 2

Stomata are the tiny pores present on the surface of leaves.They helps in gaseous exchange in massive amount for the photosynthesis.These pores also help in loss of large amount of water.It has three important parts- Guard cells, Stomatal pores and Chloroplast