Which of the following is another characteris | vedclass

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Question

(A) Animals possessing a solid nerve cord (typically ventral) are classified as non-chordates. In contrast,chordates possess a dorsal,hollow nerve cor

Vedclass · Accepted Answer

Pharyngeal gill slits are present in some stages of life.

Vedclass · Answer

(A) Animals possessing a solid nerve cord (typically ventral) are classified as non-chordates. In contrast,chordates possess a dorsal,hollow nerve cord. The fundamental characteristics of chordates include the presence of a notochord,a dorsal hollow nerve cord,and pharyngeal gill slits at some stage of their life cycle. Since the question asks for a characteristic of animals that do $NOT$ possess a dorsal hollow nerve cord (i.e.,non-chordates),we look for features that distinguish them from chordates. However,if the question implies the characteristics of chordates (which possess a dorsal nerve cord),the options provided describe chordate features. Given the phrasing,it refers to the diagnostic features of the Phylum Chordata. Thus,the presence of pharyngeal gill slits is a defining characteristic of chordates.

Which of the following is another characteristic of animals possessing a solid nerve cord?

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