Questions

When a muscle is contracted and relaxed some amount of heat is released as a by product. 

Hydrogen is the common element in all acids.

Madhya Pradesh state has the maximum number of wildlife sanctuaries in India. It has total of 36 wildlife sanctuaries. In India, there are total 96 national parks and 510 wildlife sanctuaries.

Most bacteria is reproduce by binary fission.

Epiglottis is that prevents food from entering the windpipe. 

It is a cartilageous flap that flaps opens and closes when swallowing. When you swallow, the epiglottis flattens backward to cover the entrance to your larynx and prevent food from entering the lungs and windpipe. The epiglottis returns to its usual position after swallowing.