Why the testes are situated in the scrotum, which is located outside the abdominal cavity ?
To protect from pressure by internal organs.
Providing more space for the growth of epididymis
External sexual characters appear in the male.
To get the low temperature needed for spermatogenesis.
When mouth develops from blastopore, the organism is called
The part of fallopian tube closest to the ovary is
$A$ : Blastocyst undergoes gastrulation to produce the three germinal layers.
$R$ : This involves cell movements (morphogenetic movement) that eventually help to attain new shape and morphology of embryo
In female mammals Bartholin's glands open into the
After gastrulation the roof of archenteron is formed by