Question

when the pollen grains come in contact with the ____ , a substance called ____ is released​

Answer 1

Answer:

auxin

When the pollen grains come in contact with the stigma, a sugary substance (auxin) is released.

Explanation:

Answer 2

Answer:

Stigma, Auxin

→ When the pollen grains come in contact with the stigma, a substance called auxin is released.

Explanation:

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