Question

2.5 what defensive provision do flukes possess for protection against the digestive enzymes of their hosts?

Explanation:

Flukes have a tegument which is a specialized outer - layer. This tegument is resistant to the host's digestive enzymes. It can also secrete substances that may inactivate or neutralize the digestive enzymes of the host.

Answer:

Flukes have a resistant tegument and may secrete enzyme - inactivating substances for protection against the host's digestive enzymes.