Answer:bromine
Explanation: because im smart and i did this already so i know the answer so your welcome :D
Answer:
Explanation:
1) Excitation brings about contraction.
2) Contraction leads to an increase in blood pressure.
3) Changes in blood pressure results in the opening and closing of the heart valves.
4) The opening and closing of heart valves then regulates the flow of blood and it's volume.
The evolution of emotion that’s what Charles Darwin conduct
Answer:
It depends on the bone and what you mean by function, if you mean live and be "normal" then probably.
Explanation:
A tooth is a bone, and there are plenty of people missing some. They can definitely function without one. If a person is missing on the bones that makes up the skull they might need to be more careful or get surgery in order to properly protect their brain.