Question

what is placenta ,? and stigma

Answer 1

HEYYA HERE IS YOUR ANSWER
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THE ovule is attached to the wall of the ovary by means of PLACENTA
The upper most part of pistil is stigma it is a landing platform of pollen grains
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Answer 2

PLACENTA:- Placenta is a special umbilical cord develops in the fourth week which establishes an intimate connection between the membrane and uterine wall.

STIGMA:- Stigma is the part of pistil which is present at the top. It bears the sticky substance to catch the pollen grains.

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