Read the given passage below:
Hydra are heterotrophic aquatic animals that feed upon insects, larvae and cyclopes. They capture their food with the help of tentacles around their mouth. In Hydra both extracellular and intracellular digestion takes place. They carry their prey to the mouth with the help of their tentacles. The mouth opens into the body cavity, where the food is first digested extracellularly by the enzymes. The semi digested food is then engulfed by the flagellated cells and completely digested. The digested food is now absorbed through diffusion, and the undigested food is egested through the mouth.
Answer the following questions by choosing the correct options given below.
Digestion in Hydra is _____.