Question

Leeches not have an elaborate secretions of digestive juice and enzymes why

Answer 1

Answer:

The are parasite

Explanation:

The leeches belong to platyhelminthes and are parasite as the depends on there host for food the intake the digested food.Due to this reason they do not have well developed digestive system.

Answer 2

ANSWER:

Leeches does not have an elaborate secretions of digestive juice and enzymes because the single meal taken by the leeches last for several months.

EXPLANATION:

        Leeches have the slowest digestive system. The medical leeches can store the blood in to their crops that they only need to feed twice a year. Leeches are type of annelid; they eat their food by inserting their claws in to skin of host.

        Then the blood is sucked in to their mouth from host. Later blood is stored in crop. Later the waste material from body moves out from intestine and then completely out via anus.

Slow digestion:

         The leach will drop off after the intake of meal and digest the blood at a very slow pace. The last chamber of crop through the sphinctered aperture behind into stomach.

          Now, the blood will pass very slowly into the stomach. The 'crop full of blood' will take many months to digest. Thus, leeches lack  elaborate secretions of digestive juice and enzymes.