Answer:
C
Explanation:
A scientist who studies objects in the sky, including planets, galaxies, blackholes, and stars
The reason why stars does not die when it is there time is because they tend to fuse in different and more heavier elements. In that way, it prevents them from dying for they were able to have the components of different elements, extending their lives and prevent themselves from dying on the time that they were supposed to.
<em>when two reproductive cells join together they simply cross over their chromatids exchanging characteristics so new individual has the characters of both mother and father...</em>
I think it is D. You experience increase in breathing rate to obtain more oxygen which is delivered to cells through the bloodstream
