Insects are arthropods.
Lobster
Yes crustaceans is one of the four main groups of arthorpods.
Yes. Arthropods are animals that have- during at least one stage in their life- segmented bodies, jointed legs, and an external skeleton called an exoskeleton. All crustaceans have segmented bodies,...
having a segmented body, a chitinous exoskeleton, and paired, jointed limbs.