Comment upon the following
All flesh is grass.

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

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

Comment upon the following: The placenta is an important structure for the development of a foetus.

Comment upon the following: A single sperm fertilises an ovum, still more than 300 million sperms are present in each ejaculation.

Comment upon the following : A higher rate of transpiration is recorded on windy days rather than on a calm day.

Comment upon the following : Transpiration is a necessary evil.

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

Comment upon the following : During the day transpiration and photosynthesis are interlinked

Comment upon the following: The urine is slightly thicker in summer than in winter.

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