Question

Trophectoderm cells are involved in
(a) formation of extraembryonic membrance
(b) formation of placenta
(c) drawing of food for the developing embryo
(d) all the above
(e) none of the above

Answer 1

all of the above

hope it's help

Answer 2

Hi Dear

Trophoectodern first it forms four extra embryonic membrane which later gives rise to various other parts if body.

So option d is correct .

hope you understood