WebMay 30, 2024 · Which of the following is a correct description of setae? Annelids have an open circulatory system, while molluscs have a closed circulatory system. … WebSep 1, 2024 · Annelida comprises a complete digestive system with a mouth and anus. The respiration generally occurs through the body surface. The nervous system comprises an anterior nerve ring with ganglia and a …
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WebJan 26, 2024 · Annelids, commonly referred to as segmented worms, have a closed circulatory system. In a closed circulatory system, the blood stays inside vessels and circulates throughout the body of the... The squid, a type of mollusk, has three hearts: two branchial hearts, and one … Annelid Circulatory Structure. Much like humans, annelids have a closed … WebThe circulatory system in most animals in the Phylum Annelida contain a blood vessel that arises from the capillary network surrounding the intestine and conveys the blood forward, a vessel that conveys blood backwards, … dvd in cloud speichern
12.4: Mollusks and Annelids - Biology LibreTexts
WebMay 8, 2024 · Annelids have a well-developed nervous system with two ventral nerve cords and a nerve ring of fused ganglia present around the pharynx. Figure \(\PageIndex{6}\): In this schematic showing the basic anatomy of annelids, the digestive system is indicated in green, the nervous system is indicated in yellow, and the … WebAug 25, 2024 · Option B: Annelids are characterised with the closed circulatory system.eg: humans. Mollusks have an open circulatory system, which does not … WebClosed Circulatory System. Annelids have a closed circulatory system. This means that their blood is contained within blood vessels. Segmented worms have two main blood vessels, one that runs from the head to the rear on the bottom side, or ventral side, of the worm. The other vessel runs from the anterior to the head on the top side, or dorsal ... dvd images vacation