WebApr 18, 2024 · Characteristics of Chordata. Animals in the phylum Chordata share four key features that appear at some stage during their development: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail (Figure \(\PageIndex{2}\)). In some groups, some of these are present only during embryonic development. The chordates are … WebA. Chordate embryos possess a dorsal, hollow nerve cord that runs parallel to the notochord. B. Chordate embryos have gill slits that open across the wall of the pharynx. C. Chordate embryos possess a notochord. D. Chordate embryos have a muscular tail that extends beyond the anus.
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WebNov 29, 2024 · A thick grouping of nerves that run down the back of the embryo. Explanation. The dorsal nerve cord is special embryonic characteristic of the ganglia. It is a hollow dorsal cord that is composed of a section of the exfoliated coagulant that forms a hollow tube unlike solid abdominal tubes in other animal species. WebSep 23, 2024 · The nerve cord found in most chordate embryos develops into the brain and spinal cord, which compose the central nervous system. Pharyngeal slits are openings in the pharynx, the region just posterior to the mouth, that extend to the outside environment. In organisms that live in aquatic environments, pharyngeal slits allow for the exit of ... refund return policy template
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WebJan 20, 2024 · Gene regulatory networks coordinate the formation of organs and structures that compose the evolving body plans of different organisms. We are using a simple chordate model, the Ciona embryo, to investigate the essential gene regulatory network that orchestrates morphogenesis of the notochord, a structure necessary for the proper … WebANIMALS DIVERSITY ehb: animals animals can be characterized body plans animal species vary tremendously in morphology, but their great diversity in form can be WebThe nerve cord found in most chordate embryos develops into the brain and spinal cord, which compose the central nervous system. Pharyngeal slits are openings in the pharynx (the region just posterior to the mouth) … refund reward points