Question

Parasitic adaptation of flatworm is
A. Anaerobic respiration
B. Secretion of anti enzymes
C. Resistant covering cuticle or integument
D. All of the above

Answer 1

Hint: Parasitic adaptation in the flatworms is changes and modifications occurring in per-suit of successful living so that parasites can fully adapt in the body of the host. Tapeworm is a very popular example of parasitic flatworm that lives in the human body.

Complete answer:
Parasitic flatworms have hooks on their mouth by which they can attach to their host securely. These flatworms do not have any nervous system or any digestive system. These flatworms modify themselves according to the environment in the host body so that they can easily survive there. Parasitic adaptation are all those changes and modifications made by the parasitic flatworm that helps them to survive in the host body safely.

> Option A- Anaerobic respiration: In flatworms, anaerobic respiration is there due to their reduced energy efficiency. This is one of the adaptations made by the parasitic flatworms to survive in the host body.

> Option B- Secretion of anti enzymes: Host body produces digestive juices and to neutralize these digestive juices these parasitic flatworms produce anti enzymes. These digestive juices are produced in the intestine where parasitic flatworms live.

> Option C- Resistant covering cuticle or integument: Parasitic flatworms protect themselves by forming resistant coverings or integument to save themselves from host’s digestive liquid.

Hence, the correct answer is option (D).

Note: Tapeworm is a parasite that lives in the intestine of the human body. Symptoms of having tapeworm infection in humans are: Nausea, loss of appetite, weight loss, dizziness, fatigue, abdominal pain, diarrhea, reduced absorption of food nutrients etc.