Butterflies belong to which of the following phylums?
Arthropoda
Butterflies are insects and belong to the phylum Arthropoda. Arthropods have an open circulatory system, jointed legs and many of them have a chitinous exoskeleton.
Annelida consists of segmented worms. They have no legs and no hard skeleton.
The body of molluscs are divided into head, foot and visceral mass covered with a mantle that typically secretes the shell
Echinoderms are characterized by radial symmetry, several arms radiating from a central body.