Question

1. Movement of pollen tube towards an embryo sac is
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Answer 1

Answer:

Movement of Poell tube towards and embryo sac is known as chemotropism

Answer 2

Answer:

The male gamete of the pollen grain moves through the pollen tube towards the embryo sac. ... This is due to certain chemicals released by the ovule which attracts the pollen tube towards it. This is called chemotropism. It is defined as the growth or motion of an organism or part of it in response to chemical stimuli.

Explanation: