WebDec 29, 2024 · Figure 4: Planaria: a free-living flatworm 3. Bilateral symmetry – The body plan can be divided in half making a right and left side that are mirrors of each other. Figure 5: Bilateral Symmetry Figure 6: Comparing animal body plan symmetry B. Feeding and Excretion. Two-way digestive system – Food is ingested and waste is expelled through ... WebThe meaning of FLATWORM is any of a phylum (Platyhelminthes) of soft-bodied usually much flattened acoelomate worms (such as the planarians, flukes, and tapeworms) …
4.2: Evolution of the Animal Body Plan - Biology LibreTexts
WebThe digestive and circulatory compartment of cnidarians is called the gastrovascular cavity. Coral reefs are. hard external skeletons secreted by coral animals (Cnidaria). Flatworms (Platyhelminthes) are ________ and typically have ________. bilaterally symmetrical; a gastrovascular cavity with one opening. Tapeworms are similar to fungi in that. WebNeoophorans includes 4500 described species of free-living flatworms. The body is cylindrical in small species (that may be as small as ciliated protozoa) and dorsoventrally flattened in larger species. The epidermis is ciliated. ... which is the axis of symmetry which divides the worm into right and left sides. Is the dorsal or ventral side ... lady death tropes
Unit 5-3: Phylum Platyhelminthes – Webquest Notes
WebSep 26, 2013 · Best Answer. Copy. Flatworms have bilateral symmetry. Bilateral symmetry means the animal has symmetry across one plane (known as the sagittal plane, and directly down the centre of their body ... WebSep 23, 2024 · Figure 15.2. 1: Sponges are members of the phylum Porifera, which contains the simplest animals. (credit: Andrew Turner) The body of the simplest sponges takes the shape of a cylinder with a large central cavity, the spongocoel. Water enters the spongocoel from numerous pores in the body wall. Water flows out through a large opening called … WebMar 5, 2024 · Radial Symmetry. Another trait that evolved early on was symmetry. To understand symmetry, you need to see an animal that lacks symmetry. ... Flatworms represent the next stage of invertebrate … property for sale in baston