It contracts and expands to allow air to fill in or get removed
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stomatal pore expands when it is filled with gas and contracts when gases escape. water vapour also gets out with air from here this process is known as transpiration.
Explanation:
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Answer:
Diaphragm
Explanation:
Diaphragm contracts and expands to allow air to fill in or get removed.
It aids during childbirth
It prevents the food from rising up
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