Insects belong to the phylum arthropoda and the biggest group in the arthropod phylum is the class insecta. This type of worm has an unsegmented body which is cylindrical with tapered ends. Nematodes (for example, roundworms) belong to the phylum nematoda.
For example, the earthworm which is a segmented worm. Most common types of land worms belong to the phylum annelida. Phyla is a hierarchy used to classify different animals just below kingdom level. We explain this concept in more detail inside our in-depth article, are worms animals?īut below the animal kingdom, their phylum is different. Worms and insects both belong in the Kingdom Animalia, meaning that they are both considered animals. “Bugs” are a non-scientific term used to classify many types of small creatures. Yes, an earthworm or other types of worm are often unofficially called bugs. Let’s explore the differences in the table below and then answer the most common questions in more detail. They use their segmented or unsegmented musculature to move around.ĭue to their small size, habitat, and nutrition, it is no wonder why people call worms insects in everyday language. Worms do not have any limbs and have soft bodies with no exoskeleton. Most insects generally have an exoskeleton protecting their organs, with six legs which they use to move and two antennae. But some insects have been given the “worm” name, which is technically incorrect, such as Agave worms or inchworms which are actually insect larvae (beetles).
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