Name the addicting component found in tobacco.

Name the two components of starch.

Name the following : A component used to control the current.

Name the two components of Malpighian body.

Name the main chemical components of Cytoplasm.

Name the following: Component of urine that gives it yellow colour.

What is addiction.

What is the name of the minute components of which the book of a living organism is made? Is the number of these smallest units the same in the bodies of all living organisms?

Trace the various components of evolution.

Name the following : The main component of natural gas.