Roundworms may be free-living or parasitic. Free-living worms are found mainly in freshwater habitats. Some live in soil. They generally feed on bacteria, fungi, protozoans, or decaying organic matter. 5 мар. 2021 г.
Are all roundworms parasitic?
Roundworms are parasites — organisms that need to live on or in another creature to survive. Often, the parasite causes problems for its host (creature it depends on). For roundworms, they need the body of humans or other animals to mature into egg-laying adults.
Which worms are free-living?
Free-living nematodes feed on bacteria, algae, fungi, dead organisms, and living tissues. They release nutrients for plant use and improve soil structure and water holding capacity. They are usually the most abundant type of nematodes in soil and marine environments.
What are free-living parasites?
Protozoa are microscopic, one-celled organisms that can be free-living or parasitic in nature. They are able to multiply in humans, which contributes to their survival and also permits serious infections to develop from just a single organism.
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