Answer: Food increase, Land/ shelter increase, and lower death rate.
Explanation: All of these contribute to the growth of any population.
It would be the muscles because their contracting and forcing the blood back to the heart
<span>The measles, mumps, and rubella vaccine is the live, weakened measles virus. The vaccine is made from an attenuated form of the virus and combined with protein or small viruses and bacteria extracted from the virus. Nucleic acid vaccine is a vaccine that is attenuated whole-agent vaccine.</span>
