Crustaceans: Question Preview (ID: 24201)

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Crustaceans have an exoskeleton made of
a) calcium carbonate b) chitin c) bone d) collagen
What two body part divisions do crustaceans have?
a) head and thorax b) thorax and abdomen c) cephalothorax and abdomen d) head and abdomen
Crustaceans have
a) jointed appendages b) cephalization c) antennae d) all are correct
What type of circulatory system do crustaceans have?
a) open b) closed c) ajar d) none
What is the upper portion of a crustaceans exoskeleton called?
a) top b) plastron c) carapace d) dorsal shield
How do crustaceans grow?
a) molting b) expansion c) budding d) stretching
What are the modified appendages on the underside of a crustacean's abdomen called?
a) walking legs b) claws c) telson d) swimmerets
The respiratory organs of aquatic crustaceans are
a) tracheae b) gills c) book lungs d) spiracles
The first pair of walking legs of a crustacean are modified into
a) claws b) antennae c) swimmerets d) gills
The anterior gastric mill of a crustacean functions to
a) absorb nutrients from food b) filter coarse particles from food c) release digestive enzymes d) grind coarse food
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