Question

Multicellular endoparasites (flatworms and roundworms) are commonly referred to as _________________ (a term meaning worms) and are adapted to a life within the gut, bloodstream, or tissues of another organism. One of the characteristics common to these organisms is a highly developed ________________ system.

a) Helminths, nervous.
b) Nematodes, circulatory.
c) Trematodes, respiratory.
d) Annelids, digestive.

Answer 1

Helminths, which include roundworms and flatworms, are commonly referred to as worms and are adapted to a life within the gut, bloodstream, or tissues of another organism. One of the characteristics common to these organisms is a highly developed nervous system.

Step-by-step explanation:

Helminths, which include roundworms (nematodes) and flatworms (platyhelminthes), are commonly referred to as worms. These multicellular endoparasites have adapted to a life within the gut, bloodstream, or tissues of another organism. One of the characteristics common to these organisms is a highly developed nervous system.