Explain the mechanism of breathing with neat labelled sketches.

Explain the mechanism of breathing in human

Explain the mechanism of breathing with neat labelled diagram.

Explain mechanism of breathing with neat labelled diagram.

Define breathing. Explain the mechanism of breathing in human beings.

Explain the structure of chloroplast with a neat labelled sketch.

(a) Draw a neat labelled diagram of sectionalview of seminiferous tubule. (b) Explain the mechanism of parturition with the help of foetal ejection reflex.

Explain the digestive system of man with neat labelled diagram.

Explain the components of a biogas plant with a neat labeled diagram.