Examlex
Which of the following structures contains an amide?
Radial Symmetry
A body plan in which body parts are arranged around a central axis, characteristic of many invertebrates like jellyfish and sea urchins.
Deuterostomes
A major group of animals in which the anus develops from the first opening in the embryo, with humans and starfish as examples.
Chordates
A phylum of animals that, at some stage in their life cycle, possess a notochord, a hollow dorsal nerve cord, pharyngeal slits, endostyle, and a post-anal tail.
Lophotrochozoa
A group of protostome animals within the Ecdysozoa, including mollusks, annelids, and several other phyla, characterized by specific larval and ciliary features.
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