The ensure of effectiveness of reproduction and survival of embryo in mammals is :

1)

Formation of yolk sac

2)

Formation of plancenta

3)

Reduced number of eggs

4)

Retention of embryo in female

pls .. explain

Question

The ensure of effectiveness of reproduction and survival
of embryo in mammals is :

1)
Formation of yolk sac

2)
Formation of plancenta

3)
Reduced number of eggs

4)
Retention of embryo in female
pls explain

G. Lakshmi · Accepted Answer

Option 4 is correct!

Normal oviductal embryo transport is one of
the prerequisites for on-time initiation of implantation in uterus,
whereas a dysfunctional regulation of this process resulting from
oviductal embryo retention would increase the incidence of
pregnancy failure or cause tubal (ectopic) pregnancy in
humans

The ensure of effectiveness of reproduction and survival of embryo in mammals is : 1) Formation of yolk sac 2) Formation of plancenta 3) Reduced number of eggs 4) Retention of embryo in female pls .. explain

The ensure of effectiveness of reproduction and survival of embryo in mammals is :

1)

Formation of yolk sac

2)

Formation of plancenta

3)

Reduced number of eggs

4)

Retention of embryo in female

pls .. explain