Food is a basic necessity for all ______  organisms to survive.

The tiny opening found in the leaf is

Milk teeth grow when a baby is about ----- old.

When the milk teeth fall off, a new set of ------ teeth grow.

The digested food reaches the amoeba by

Saliva contains an enzyme called.

The removal of undigested food through anus is called

The plant & leaves have a wonderful green substance called

The mode of nutrition in amoeba is

Salivary glands secrete a watery fluid called.