Question

What do you mean by inflorescence and placentation?

Inflorescence is the mode of arrangement of flowers on the axis of the plant
Placentation
It's the manner in which the ovules are arrangedor attached to the wall of the ovary

Answer 1

Explanation:

An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches.  Placentation is  the local fusion of the embryonic stage of an animal to its parent for physiological exchange to promote the growth and development of the young; involves a placenta in non-egglaying mammals.

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Answer 2

Answer:

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Placentation is the arrangement of ovules in the ovary of a plant. Axil : Carpels are folded inward with ovules placed along the central axis of ovary e.g., tomato. ... Parietal : Ovules develop on the inner wall of the ovary e.g., Popy.