Question

1. Do all animals have bones? Give examples.
2. Do the following have endoskeleton or exoskeleton-human, crab, cockroach, fish, snail?
3. The fish uses the fins on its sides to paddle in water. Do you agree? Give reasons.
4. How is movement in a snake related to the flexibility of its backbone? Is this also true for humans?
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Answer 1

Answer:

no

Explanation:

animals include all microorganisms have no bones because they are unicellular

Answer 2

Answer:

yes some of the animal have bone like lion