Answer:
1 - D- Transport oxygen-rich blood to the body
Explanation:
2- D- Common Beetle
3- D- Protects the brain from injury
4- D- Attach Bones to muscles and bones to bones.
Answer: No atoms can be created and no atoms can be destroyed.
(don't know if thats what you were looking for)
Explanation:
They are composed of proteins. I cannot see the options but hopefully that answer is in one of them
