(a) (i) Explain the monosporic development of embryo sac in the ovule of an angiosperm. (ii) Draw a diagram of the mature embryo sac of an angiospermic ovule and label any four parts in it.
OR
(b) (i) Explain the formation of placenta after the implantation in a human female. (ii) Draw a diagram showing human foetus within the uterus and label any four parts in it.
,
,