In the egg of bird, shell and shell membranes are

  • A

    Permeable to ${O_2}$ and $C{O_2}$

  • B

    Permeable to water only

  • C

    Permeable to air only

  • D

    Non-permeable

Similar Questions

The eggs in which fate of every part of the egg becomes fixed are called

The skeleton and muscles originate in the development from or During embryonic development endoskeleton and muscles develop from which germinal layer

Coelom is found between the cavity of

During cleavage $DNA$ synthesis

$A$ : The most immediate effect of $FSH$ is the maturation of existing late primary or secondary follicle.
$R$ : $A$ rising level of $FSH$ causes the developing egg within the follicle to complete the first meiotic division to form a secondary oocyte.