Question

Parasitic adaptation of flatworms is:

• A. Anaerobic respiration
• B. Secretion of antienzymes
• C. Resistant covering, cuticle or integument
• D. All of the above

Answer 1

Answer: (D)

All of the above

Parasitic flatworms protect themselves from the host's digestive liquids by developing teguments or resistant coverings around their bodies. They secrete anti enzymes to neutralize the digestive juices of host which are produced in intestine where flatworm lives. In flatworms, anaerobic respiration occurs to reduce energy efficiency. Flatworm uses teguments or cuticles for respiration where gases diffuse directly across their moist outer surface. These all are the parasitic adaptations of flatworms. So the correct answer is 'all of the above'.