According to the phylogenetic tree, which two phyla are most closely related?

a. chordata and mollusca
b. cnidaria and nematoda
c. annelida and arthropoda
d. platyhelminthes and echinodermata

Annelida and Arthropoda are the correct answers (C)

The correct answer is option C, that is, Annelida and Arthropoda.

Explanation:

A diagram, which demonstrates an evolutionary association between the species is known as a phylogenetic tree. Both the phyla, that is, Annelida and Arthropoda belong to the kingdom Animalia. In both the phylum, the species comprises of segmented bodies. However, the species belonging to phylum Annelida comprises a hydrostatic skeleton, while the species in phylum Arthropoda comprises exoskeleton formed of chitin.

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