WebFlatworms have three well-developed germ layers—an outer ectoderm, inner endoderm, and middle mesoderm. They have a head region that encloses a cluster of sense organs and nerve tissue, constituting a rudimentary brain. Nerves extend from this cluster through the body in a network, forming a primitive nervous system. WebWhat part of the brain was most likely injured? A) cerebellum. B) hypothalamus. C) left temporal lobe. D) medulla oblongata. 2. Organize the organism from most complex to least complex in terms their nervous system. A) Salamander, octopus, grasshopper, flatworm, sea star, sea anemone. B) Sea anemone, sea star, flatworm, grasshopper, octopus ...
We’re one step closer to reading an octopus’s mind Ars Technica
WebJun 24, 2024 · What kind of brain does a flatworm have? Flatworm Head Head holds attachment hooks for host attachment 2 eyespots to help detect light Also contains brain called 2 simple brains called ganglia- simple bundles of nerves Phylum Nematoda Some roundworms can live in humans and make them sick Roundworms have a complete … WebIn the flatworm Planaria, the brain consists of two cerebral ganglia (clusters of nerve cells) from which nerve cords extend the length of the body. What type of circulatory system do roundworms have? Roundworms have no circulatory or respiratory systems so they use diffusion to breathe and for circulation of substances around their body. hydejack github
Flatworm - Wikipedia
WebMay 5, 2024 · Do flatworms have sense organs? They have a head, brain and sense organs. This is called “cephalization.” The sense organs – called eyespots – look like eyes and are sensitive to light changes, but are not like human eyes. ... Flatworms do not have this; their bodies, instead, are covered with cilia, hairlike growths. ... WebFlatworms have "auricles" that project from the side of the head. These auricles contain chemoreceptors that are used to find food. Flatworms also have eyespots called "ocelli". ... The "brain" is located above the pharynx and is connected to the first ventral ganglion. The brain is important for movement: if the brain of the earthworm is ... WebApr 8, 2024 · It’s no easy task to read an octopus’s brain. For one thing, the animals are nearly impossible to track in the wild. “Octopuses are hard to see, and besides, they are often out of water in ... hyde insulation knife