Roundworms may be free-living or parasitic.
Parasites are organisms that live off a host.
Roundworms may be free-living or live off a host.
aside from free-living, where else can roundworms exist?
Options:
A) mouth of rivers
B) in the sky
C) loose soil
D) our planet
E) Earth orbiting the Sun
F) live off a host
G) molecules
H) h2o