Comment upon the following:
Energy requirements of the kidney are very high.

Comment upon the following All flesh is grass.

Comment upon the following: Blood entering the kidney has more glucose than the blood leaving the kidney but urine contains no glucose.

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

Comment upon the following : Large quantity of salts in pickles and sugar in jams and jellies is added .

Comment upon the following: In addition to excretion, kidneys also help in osmoregulation and maintenance of pH.

Comment upon the following: Gametes are always haploid.

Comment upon the following : Transpiration is a necessary evil.

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

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

Comment upon the following: At the time of birth, the testes descend down into the scrotal sac.