Long Answer Questions Five mark Each
QUESTIONS FROM CBSE BOARD EXAMINATIONS :
Give reasons why :
(i) most zygotes in angiosperms divide only after certain amount of endosperm is formed.
(ii) groundnut seeds are exalbuminous and castor seeds are albuminous.
(iii) micropyle remains as a small pore in the seed coat of a seed.
(iv) integuments of an ovule harden and the water content is highly reduced as the seed matures.
(v) apple and cashew are not called true fruits.