Question

why hydra has both types of digestion?​

Answer 1

Enzymes secreted by the hydra , it will down food from absorption. Hydra also use extracellular digestion and secrete molecules to break down the substrate they will grow. And intracellular digestion take place inside the cell.

Answer 2

Hydra also use extracellular digestion and secrete molecules to break down the substrate they will grow. And intracellular digestion take place inside the cell.