$A$ : The scrotum acts as temperature regulator for the testes.
$R$ : Wall of scrotum is supported by dartos muscles which help in positioning of testes.
Assertion and Reason both are correct and also correct explantion.
Assertion and Reason both are correct but not explanation of assertion.
Assertion is correct, but Reason is incorrect.
Both Assertion and Reason are incorrect.
Archenteron is lined with
Primary sex organs differ from the secondary sex organs in all the following, except
Which one of the following list contains only the mesodermal structures
Drugs such as Thalidomide taken by woman in first trimester of pregnancy cause all the following malformations in the developing embryo, except
In macro and telolecithal eggs site of amphimixis lies in the