Name the type of immunity that is present at the time of birth in humans. Explain any two ways by which it is accomplished.

Name the type of immunity that is present at the time of birth in humens. Explain any two ways be which it is accomplished .

The type of immunity that is present at the time of birth in human is:

Non specific type of defence that is present at the time of birth is :-

Name the type of muscles that accomplish peristalsis.

Name the two types of valves that are present in the heart.

Name two types of glands present in the skin of mammals.

The type of lens present in human eye is