Running makes a person breathe

An organism that can survive in the absence of air

We breathe air into our______________and the  chest expands.

 Respiration in plants takes place through

An adult frog breathes through:

 The air we breathe in, is not the same as the air we breathe out and the process is called

How do earthworms breathe?

Inhaled air has more

Insects breathe through holes in their body called________.

A part of respiration