Comment upon the following: A worker at a petrol pump does not smell petrol.

Comment upon the following All flesh is grass.

Comment upon the following: Gametes are always haploid.

Comment upon the following: Twins may or may not be identical.

Comment upon the following : The leaves of plants roll up on a bright sunny day.

Comment upon the following : Transpiration is a necessary evil.

Comment upon the following : Adrenaline is known as hormone of emergency.

Comment upon the following : RBCs burst when kept in distilled water.

Comment upon the following: A man having presbiopia cannot accommodate the eye.

Comment upon the following: In eye transplantation, cornea is grafted.

Comment upon the following : Plants have to pay the price of photosynthesis in the form of transpiration.