Invertebrates Crossword

An invertebrate animal that has an exoskeleton and jointed appendages.
An aquatic invertebrate animal that has a soft body and external shell.
A group of mostly aquatic arthropods that have a segmented body and several pairs of legs; includes crab and shrimp.
Internal skeleton
thin, flexible limbs on an animal, especially an invertebrate
A simple nervous system, found in the bodies of cnidarians and echinoderms.
A group of arthropods that have two body segments.
A group of small arthropods that have six legs, three body parts, and usually two sets of wings; includes bees, beetles, and ants.
A group of primitive marine invertebrates with a porous body that permanently attaches to a solid surface as an adult.
An animal lacking a backbone such as arthropod or a mollusk.
The breathing holes in an insect's abdomen
The protective outer-body of an arthropod.
An aquatic invertebrate animal of the phylum Cnidaria, which comprises the coelenterates.
A group of marine mollusks with a pair of shells connected by a hinge.
the periodic shedding of an old exoskeleton