That's just the way God made them. Flatworms and roundworms have certain body cavities that basically help them digest food,respire,reproduce,and even move from one place to another.
Yes, this lego set contains a 1x1 lego stud and it is also for children ages 2+
Capillariasis is a parasitic infection. The infection is caused by several types of nematodes: flatworms such as liver flukes, and roundworms.
Yes, planarians are non-parasitic flatworms
Helminthology is the scientific study of parasitic worms, including flatworms (such as tapeworms) and roundworms (such as hookworms). Researchers in this field study the biology, ecology, epidemiology, and control of these parasites that can infect humans, animals, and plants.
(it would be false to say that all flatworms are parasitic--the idiot that wrote that wasn't so smart, so I had to change that-- because the PLANARIAN-for example, is flatworm and that is a harmless little critter) ~round worms are ROUND ~flat worms are FLAT ~Round worms have 2 body openings (mouth & anus) *random fact: 1/2 of all roundworms are PARASITIC, and 50 species affect humans**
No, not all roundworms are parasitic. While some roundworms are parasitic and can cause infections in animals and humans, there are also free-living roundworm species that live in various environments such as soil, freshwater, and marine habitats.
Yes, flatworms themselves are parasitic. Their eggs, however, can exist for long periods outside any host.
Helminths are classified as parasitic worms that belong to the phylum Platyhelminthes (flatworms) and the phylum Nematoda (roundworms). They can further be categorized into different classes based on their anatomical features and life cycles.
Planarians are neither parasitic or segmented. They are flatworms.
Flukes
Flatworms are divided into two groups, parasitic and nonparasitic. The parasitic types, which live off of other organisms, consist of Cestoda, Trematoda, and Monogenea flatworms.
Free-living