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.
During gastrulation ……. is formed
When mouth develops from blastopore, the organism is called
The second maturation division of the mammalian ovum occurs
Formation of notochord or the central axial chord in vertebrates is known as
An antrum is the characteristic of …follicles
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