Answer:
nuclear energy
Explanation:
An atom has a nucleus (or core) containing protons and neutrons, which is surrounded by electrons. Protons carry a positive electrical charge, and electrons carry a negative electrical charge. Neutrons do not have an electrical charge.
<span>d. by sending and detecting chemical messages</span>
Answer:
eing ecids combine to form nucleic acids
Explanation:
I truly don't know
The moons orbit is 27 days.
