Question

Define: skull,heart
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Answer 1

Answer:

skull is the hard protective covering made of bone tissue which us responsible for protecting the most important and sensitive organ brain

heart is one of the essential organs which is responsible for the circulation of the blood to all the parts of the body

hope it helps.....

Answer 2

Answer:

skull - calcareous cranium protection around brain parts

heart - an organ which pumps blood throughout the body.

( these are basic answers u can modify them according to your standard.)