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___1.which of the following has an exoskeleton?
A. Foxes B. Birds C. Lobsters D. Fish
___2.which class of animals has skin with fur or hair, feeds their young milk and
maintains a constant body temperature?
A. Mammals B. Reptiles C. Amphibians D. Birds
___3. which of the following is an mammal?
A. Dolphin B. Spider C. Centipede D. Sea urchin
____4. the following are reptiles except___.
A. Snake B. Turtle C. Salamander D. Alligator