Chapter 2 Mollusks, Arthropods, and Echinoderms Crossword

Invertebrates with soft, unsegmented bodies that are often protected by a hard outer shell.
Skin of the echinoderms is stretched over an internal skeleton making hardened plates.
the heart pumps blood into open space in the body's internal organs.
invertebrates with an internal skeleton and a system of water vascular system
the largest group of mollusks having a single external shell or no shell at all.
a stage a gradual metamorphosis that resembles the adult insect.
mollusks that have two shells held together by hinges and strong muscles.
the mid section of an arthropod with the wing and legs are attached.
a mollusks whose foot is adapted to form tentacles around its mouth.
an arthropod with three body sections, six legs, one pair of antennae, and one or two pair of wings.
invertebrates that have an external skeleton, a segmented body, and appendages.
the hine section of an arthropod contains the reproductive organs and part of the digestive system.
a waxy out skeleton that protects some animal and help prevent evaporation.
arthropod with two body sections four pairs of legs, and no antennae.
an arthropod that has two or three body sections, 5 or more pairs of legs, and two pairs of antennae.