please explain me

Asked by  | 16th May, 2010, 06:58: PM

Expert Answer:

Transportation is important so as to circulate the necessary materials to the site where they are needed. It is through transportation that food and oxygen is delivered to all parts of the body. In addition, hormones, enzymes, vitamins, salts, waste products etc. also have to be taken from one part of the body to another, so as to enable the efficient functioning of the body.

Answered by  | 17th May, 2010, 12:25: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.