Answer:
Once a person has developed mumps they remain immune to that disease for the rest of their lives. Therefore if they come in contact with the virus again their immune system recognises the virus and eradicates it. To improve your immune system you can eat healthy and exercise often.
Explanation:
The nitrogen atom would be electrically charge by the neutron and the neutron would give the nitrogen atom a negative charge when combined
The two stages of photosynthesis are:
The light reactions
and
The dark reactions.
Answer:
B. cardiac cells, which are a type of muscle cell
