A chaeta or cheta (from Greek χαίτη “crest, mane, flowing hair"; plural: chaetae) is a chitinous bristle or seta found in annelid worms, (although the term is also frequently used to describe similar structures in other invertebrates such as arthropods). Polychaete annelids, ('polychaeta' literally meaning "many bristles") are named for their chaetae. In Polychaeta, chaetae are found as bundles on … WebA fluid-filled body cavity in which the gut is suspended and instead, mesoderm fills the body spaces around the gastrovascular cavity What are cerebral ganglia and their function? Clusters of nerve cell bodies, receives input from phtoreceptors in eyespots and sensory cells Characteristics f Turbellaria

Chitinous - definition of chitinous by The Free Dictionary

WebSegmented worms Description: Less than 5 cm in length (but can reach up to 10 cm). Oligochaeta have symmetrical, segmented, bodies with zero to four bundles of chaetae (chitinous bristles) on every segment. Habitat : Found in all aquatic environments, can survive very low oxygen conditions. Back to My Organism is Worm Like WebOct 6, 2024 · This group is also called “bristle worms” because most annelids have tiny chitinous bristles called setae. How do you think polychaetes survive in the wild? The researchers suspect that these polychaetes survive by feeding on free-living bacteria on the gas hydrate’s surface. They may also encourage the growth of their own bacterial food ... shwe gas movement

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WebJan 4, 2024 · Chaetae are a specific type of setae that contain chitin in their hair-like bristles. Thus, these are also called as chitinous bristles or chitinous setae. They are mostly found in fungi; however, certain … WebThe chitinous bristles that earthworms use to anchor themselves in the earth and pull themselves along are A. aortic arches. B. lateral ventricles. C. setae. D. parapodia. E. nephridia. 72. Fertilization in the earthworm is accomplished by the use of the A. nephridia. B. clitellum. C. flame cells. D. trachea. E. typhlosole. 73. Earthworms are WebAnnelid setae are stiff bristles present on the body. They help, for example, earthworms to attach to the surface and prevent backsliding during peristaltic motion. These hairs make it difficult to pull a worm straight from the ground. Setae in oligochaetes (a group including earthworms) are largely composed of chitin. They are classified according to the limb to … shwe gas field