Explain chemical co-ordination in humans and give the names and functions of some hormones.

Write the names and functions of various hormones of pancreas.

Describe human blood and give its functions.

Give name and functions of hormones of adenohypophysis?

Name the ovarian hormone and give their functions.

Explain co-dominance with human blood groups.

Define vestigial organs. Write names of some vestigal organs in human body and write the names of those animals in whom same organs are functional.

Explain the structure and function of retina in human eye.

Give an account of pineal gland and enlist the functions of hormone secreted by it.

Explain what happens when following reactions take place and give the balanced chemical equations. Silver nitrate solution added to solution of sodium chloride.

Explain the following reactions giving their balanced chemical equations: Sodium chloride solution is mixed with silver nitrate solution..