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2. they are animal without backbone
a vertebrates be in vertebrates
c mammals d riptiled
3 which of the following is not are arthropods
A. crabs B. scorpions C octopus D. insect
4. they are so soft-bodiedn animals with shell inside or outside their bodies called exoskeleton
A. arthropods B.echinoderms C.poniferans
5. which of the following is not mollusks
A.Spider B.snails C.clams D.spuids​