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III. Read each item carefully and encircle the letter that corresponds to the correct answer.

11. Animals without backbones are called
A. insects
B. invertebrates
C. vertebrates

12. Identify the invertebrate from the list below.
A lion
B. mouse
C. Starfish

13. Crabs and crawfish are
A arachnids
B. crustaceans
C. rodents

14. The following are arthropods EXCEPT
A crab
B. lobster
C. Starfish

15. Lizards blend with their environment in order to
A. attract males
B. avoid predators
C. cope with changing environment​