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Describe the subphylum Crustaceans.
-crabs, shrimps, lobsters, crayfishes
-2 pairs of antennae: sense organs and swimming
-2-3 body sections
-Mandible: chewing mouthpart
-4 pairs walking legs
Describe the subphylum Chelicerada.
-spiders, ticks, scorpions
-mouthparts called chelicerae, contains fangs that are used to stab and paralyze prey
-2 body sections
-cephalothorax and abdomen
Describe the mouthpart of chelicerates
-Chelicerae, contains fangs that are used to stab and paralyze prey
Chelicerates have __ body sections
Crustaceans have __ body sections
What are they?
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