How is respiration regulated?

How are the activities of gastro-intesinal tract regulated ?

Air bladder is present which regulates ....... in osteichthyes.

Which organelle perform aerobic respiration in cell?

What is respiration ? Explain about respiratory substrates .

In which process CO_(2) is not released ? (A) Aerobic respiration in plants (B) Aerobic respiration in animals (C) Alcoholic fermentation (D) Lactic acid fermentation

What are the main steps in aerobic respiration? Where does it take place?

Oxygen is an essential requirement for aerobic respiration but it enters the respiratory process at the end ? Discuss.

How time is regulated in wristwatch?