Question

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Answer 1

pollen tube is a part of pollen grain which carry male gametes from pollen to ovary

zygote - it is the result of fusion of male and female gamete

fertilization- process of fusion of male and female gamete

pollination-it is the process of bringing pollen to stigma

Answer 2

Answer:

Pollen tube-they are produced by the male gametophytes of seed plant.

Zygote - fertilised cell egg formed by the fusion of egg with sperm.

Pollination - transfer of pollen grains from the anther to stigma

Fertilisation - fusion of male and female gametes resulting the formation of Zygote

Explanation:

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