Tooth decay is mostly caused by interaction in the mouth between bacteria and food particles of -

Which of the following is synthesized by intestinal bacteria?

Energy is stored in liver and muscles in the form of :

Consumption of fish is considered to be healthy when compared to the flesh of other animals because fish contains :

In which of the following groups of organisms, is food material broken down outside the body and absorbed ?

Which of the following is mostly carbohydrate?