Question

Long Answer Type Questions

1 different between self pollination and cross pollination in detail ?

ans

2 describe vegetative propagation along with an example

ans

3 explain along with diagram the process of spore formation

ans

4 Explain various steps involved in the formation of plant seed starting from pollination.

ans


Class 7​

Answer 1

Answer:

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1.

Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant. Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species.

3.

Spore Formation is a method in Asexual Reproduction. ... When Sporangia burst; minute single-celled, thin or thick walled structures called spores are obtained. Under suitable conditions, they develop into a new Plant. Reproducing using spores is an asexual method.

4.

1) Once the zygote is formed, it divides rapidly to form an embryo.

2) The embryo is enclosed within a protective seed coat ( which develops from the ovule wall ).

3) The embryo enclosed in the seed gives rise to a new plant.

Answer 2

pehle wale mein answers likhe h isme se diagram dekh lijiye