What is the term for the leaf openings responsible for gaseous exchange?

The only way for gases to diffuse in and out of the leaf is though small openings on the underneath of the leaf, which is the stomata. The stomata can open and close according to the plant's needs.

Explanation:

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emerald ash borer

the emerald ash borer is a green buprestid or jewel beetle native to north-eastern asia that feeds on ash species. females lay eggs in bark crevices on ash trees, and larvae feed underneath the bark of ash trees to emerge as adults in one to two years. hope this !