ROUNDWORMS
- Roundworms get their name from their round cross section
- Long thread-like bodies
- Usually very small to microscopic, some parasitic members however may be a meter long
- Simple tube-like gut with a mouth and anus
- No circulatory system, gas exchange and excretion are by diffusion across the body wall
- There is very little superficial difference between nematode species, they all look pretty much like larger or smaller, somewhat fatter or skinnier versions of each other
- Sexual reproduction, sexes separate, no asexual reproduction. Males are usually smaller than the females, the females of some species can deposit over 100,000 eggs per day.
If you would like to learn more, click the link below and you will be brought to the roundworms section from the University of Maryland.