Question

Parasites usually lack a well developed digestive system. Comment.​

Answer 1

Answer:

Parasites usually lack a well developed digestive system.

Tapeworms have no digestive tract so they must eat food already digested by another animal. That is precisely what they do as a parasite inside our intestines. Tapeworms absorb nutrients directly across their skin (cuticle). They also reproduce inside us.

Due to the lack of a body cavity,flatworms are known as acoelomates. Flatworms have an incomplete digestive system. This means that the digestive tract has only one opening. Digestion takes place in the gastrovascular cavity.

Answer 2

cestodes have no digestive tract and they absorb nutrition from the host cells across the body wall.

parasites are internally or externally attach in body.

tenia solium is parasites which are found in human intestin and absorb the nutrition.