The testes in male mammals descend into the scrotal sac b...
The testes in male mammals descend into the scrotal sac because
there is congestion in the lower abdomen
they run the risk of being destroyed
they need special support
they require a relatively low temperature
Correct answer is D
No explanation has been provided for this answer.
The period of inactivity seen in some animals during long period of heat or drought is ...
Which of the following groups of organisms has kidney as the excretory organ? ...
Which of the following is a characteristic of cells related to irritability? ...
In man, adult schistosoma is found in the ...
The causative agent of bird flu is a ...
The part labelled II in the diagram is the ...
A moss plant can withstand drought by means of its ...
The dark reaction of photosynthesis involves ...
Which of the following mineral salts is a trace element? ...