Question

difference between Insects,Animalsand humans​

Answer 1

Answer:

Instead of depending on bones for support, insects have a strong exoskeleton. While humans have lungs, insects breathe through air-filled tubes called tracheae that are found in different places on the body. To deliver oxygen, humans use proteins in the blood.

Explanation:

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Answer 2

Answer:

Instead of depending on bones for support, insects have a strong exoskeleton. While humans have lungs, insects breathe through air-filled tubes called tracheae that are found in different places on the body. To deliver oxygen, humans use proteins in the blood.

Explanation:

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