(a) Coconut palm is monoecious, while date palm is dioecious. Why are they so caled?

(b) Draw a labeled diagram of sectional view of a mature embryo sac of an angiosperm.


OR


(a) How is ‘oogenesis’ markedly different from ‘spermatogenesis’ with respect to the growth till puberty in the humans?


(b) Draw a sectional view of human ovary and label the different follicualr stages, ovum and Corpus luteum.



(a) Coconut palm is monoecious because both male and female flower borne on the same plant.


Date palm is dioecious because these plants bears exclusively either male flowers or female flowers.


(b) Diagram of sectional view of a mature embryo sac of an angiosperm-



OR



B) sectional view of human ovary:



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