Describe the composition of human blood.

Briefly describe the composition of Lac operon.

Describe the composition of normal and abnormal urine.

Explain the composition of blood.

Describe the working of human blood circulatory system with the help of a suitable diagram which shows all the steps involved.

Describe the composition of atmosphere.

Write an essay on the composition of blood.

Describe the composition and functions of blood.

Describe the cellular composition of wall of stomach of human alimentary canal.