DENDROLOGY

Detailed explanation-1: -Both worms and insects are classified under the Kingdom Animalia. The animal kingdom is split into two groups: vertebrate, animals with a backbone, and invertebrate, animals without a backbone. Both worms and insects are invertebrates.

Detailed explanation-2: -An earthworm is a terrestrial invertebrate that belongs to the phylum Annelida. They exhibit a tube-within-a-tube body plan; they are externally segmented with corresponding internal segmentation; and they usually have setae on all segments.

Detailed explanation-3: -Worms are invertebrate animals with long bodies and no legs. They have a distinct head and tail end and are typically small; however, some species can be as long as 12 meters. Worms have a simple brain that is connected to a nerve cord that allows them to sense the environment around them and react appropriately.