Answer: The atom of carbon is able to form macromolecules because it has only four electrons in its outer shell. This is the reason why it can bond with four other carbon atoms. The bonds that it forms with other carbon molecules are very stable.
Explanation: I did my research and i also took Science class. :)
Hope this Helps :).
Answer: determine the color of a mineral in powdered form.
Explanation:
They developed to be protected by the hard shell from parasites and ther predators.