Microlecithal eggs are found in
Reptilia + Aves
Amphibia + Aves + Reptilia
Reptilia + Aves + Chiroptera
Eutheria
(d)Very less amount of yolk is found in eutherian mammals.
Holoblastic cleavage may occur in eggs which are
As a result of cleavages, if blastomeres are symmetrically placed around the polar axis the type of cleavage is known as
Placenta is present in
Cells of leydig are found in
Which one of the following events immediately follows the entry of a spermatozoan into an oocyte
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