Answer: False
Step-by-step explanation:
Crustaceans are groups of animals that have a hard exoskeleton, jointed legs, and a segmented body that is bilaterally symmetrical. They have two pairs of sensory antennae, one pair of mandibles (for chewing food), and two pairs of maxillae (to help the mandibles in positioning the food). Crustaceans are invertebrates and arthropods.
Most crustaceans live in water, but some live on land. Crustaceans are the most numerous animals in the oceans, but some crustaceans live on fresh water. There are about 30,500 species of crustaceans.
Characteristics of Crustaceans:
-A hard exoskeleton made of calcium
-The head has two compound eyes, two pairs of antennae, and three pairs of mouthparts.
-A pair of green glands excrete wastes near the base of antennae.
-The abdominal segments have swimming legs(swimmerets).
-The tail is fan-shaped.
-The circulatory system is open; there is no heart and the blood is pumped by vessels.