The answer is as follows: The tapeworm is a parasite, and the dog is the tapeworm's host.
Explanation:
Tapeworm is a parasite that belongs to cestodes (flat worms), very important in the health of dogs, some species can stimulate zoonosis. The biological cycle of tapeworm begins with an intermediate host, different from the definitive host, which is the dog, to complete its cycle. This intermediate host is fleas. The cycle is completed when the flea is ingested by the dog, then the tapeworm will be installed in the intestinal wall of its canine host, where it will feed.
There are so many examples for that in different areas, like TPBi experiment carried out in our lab recently.Here's one link: http://www.alfa-chemistry.com/tpbi-cas-192198-85-9-item-282866.htm
