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I have written it by myself please mark it as the brainllist if it will help you please say thanks for this answer too. . .
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Explanation:
In humans fertilisation occurs only in month because only one ova is released in one month in humans.
Self pollination is pollen of same flower fertilise the ovary of the same flower.
Cross pollination is the fertilisation occurs between ovary and pollen of different flowers.
Implantation is attachment of the fertilised egg to the walls of uterus.
Ova is released and waits in the Fallopian tubule for fertilisation in the middle period of menstrual cycle hence fertilisation occurs then.
Amoeba is saprophyte. It feeds on dead and decaying organic matter.
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