As plants are able to make their own food and pass different gases through their leaves, there is a tiny opening (or pore) that is used for this exchange of gases and/or water vapor; This opening (pore) is found mostly on the under-surface of plant leaves and is called...(1 point)

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stigma
stigma

petal
petal

anther
anther

stomata

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The opening (or pore) that is used for the exchange of gases and/or water vapor in plants is called stomata.