WebApr 14, 2024 · విమానాలు క్సిజన్‌ను ఎలా పొందుతాయి How do airplanes get oxygen for the cabin #shorts #short #ytshorts #shortsfeed #telugushorts # ... WebThey can be divided into three major categories: (1) Turbellaria: free-living flatworms, like Planarian (in freshwater) and Divided flatworm (in marine); (2) Trematoda: parasitic flukes that Infect internal organs of a host. Ex. Schistosoma fluke causes Schistosomiasis – fluke’s eggs clog blood vessels of patients; (3) Cestoda: parasitic …

Flatworms ( Read ) Biology CK-12 Foundation

WebJun 18, 2024 · Planarians are carnivores and obtain their food by predation or scavenging. The muscular pharynx extends through the mouth to pick up food and then withdraws into the body. The pharynx leads to a branched digestive tract. Nutrients from the food diffuse through the wall of this tract and into the animal's cells. WebMost species of freshwater flatworm are at least moderately tolerant of polluted conditions. Tolerant species tend to live in areas where decaying organic matter causes the water to … how does the human body fight off infections

9.4: Flatworms - K12 LibreTexts

WebJan 29, 2024 · Flatworms are small, literally flat worms, which ‘breathe’ through diffusion across the outer membrane. The flat shape of these organisms increases the surface area for diffusion, ensuring that each cell within the body is close to the outer membrane surface and has access to oxygen. WebFlatworms are small, literally flat worms, which “breathe” through diffusion across the outer membrane. The flat shape of these organisms increases the surface area for diffusion, ensuring that each cell within the body is close to the outer membrane surface and has access to oxygen. If the flatworm had a cylindrical body, then the cells in ... WebFlatworms, bag-shaped but flattened, also get oxygen and nutrients to their body cells easily because all their cells are close to either their outer surface or their digestive cavity (Fig. … photocard display