Correct Answer:
Option B - Millipedes are arthropod with thousand-legged invertebrates with an exoskeleton, a segmented body and joint appendages. Arthropods also have a hemocoel, an open body cavity in which blood flows and bathes the tissues and organs. Spider belongs to phylum Arthopoda.
B. Millipedes are arthropod with thousand-legged invertebrates with an exoskeleton, a segmented body and joint appendages. Arthropods also have a hemocoel, an open body cavity in which blood flows and bathes the tissues and organs. Spider belongs to phylum Arthopoda.