PLATO Course Biology, Semester B v6.0 > Post Test: Organization of Organisms Instructions: Select the correct location on the image. According to the phylogeny tree, which phylum of organisms are most closely related to chordates? porifera cnidaria platyhelminthes nematoda mollusca annelida arthropoda echinodermata chordata sponges jellyfish flatworms round worms mollusks segmented worms insects spiders starfish vertebrates backbone segmentation endoskeleton coelom body cavity bilateral symmetry tissues multicellularity Ancestral Protist
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Identify the position of the phylum Chordata. Show more…
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