Answer:C. Creating helium from hydrogen in its core
Explanation: Stars produce energy majorly by nuclear fusion. The process of creating helium by merging hydrogen atoms to produce deuterium which in turn is converted to helium.
There body will be able to fight off sickness and cancers again. The immune system will slowly start to rebuild and become strong again.
Sound waves cannot travel through a vacuum. This is because sound waves move by actually compressing molecules--therefore in a vacuum it would be impossible for sound to travel. This is also why no sound can be heard in space.
That'll be guanine. If you look up "pyrimidine" in google, it will tell you the two nucleotides that are pyrmidines are cytosine and thymine. So that leaves guanine.
Pancreas
It releases insulin to lower blood sugar and glucagon to raise blood sugar
