<h3>In general,the more massive a star is,the shorter it's life span on the main sequence.After the hydrogen fuel at the core has been consumed,the star evolves away from the main sequence on the HR diagram,into a supergiant,red giant,or directly to a white dwarf.</h3>
<h2>--SirGerick--</h2>
Answer:
plants
Explanation:
all green life gives us oxygen, and in turn we give c02 or carbon dioxide
Littering, hunting specific endangered species, honestly there are tons of things so the easiest one would be littering because if animals eat certain things it can kill them.
Plasma contains proteins (to help blood to clot), and it transports substances through the blood stream. The plasma also contains glucose and other dissolved nutrients. It can also carry water, salts, and enzymes. Plasma has a very light yellow color, such as the color of straw.
The main purpose: is to<u> transport nutrients, hormones, and proteins</u> to different parts of the body!
