<span>The center of hemoglobin is made of which of the following?
</span><span>amino acids</span>
Answer:
For most of its active life, a star shines due to thermonuclear fusion of hydrogen into helium in its core, releasing energy that traverses the star's interior and then radiates into outer space. At the end of a star's lifetime, its core becomes a stellar remnant : a white dwarf , a neutron star , or, if it is sufficiently massive, a black hole .
Explanation:
I don’t really know this but I think
Explanation:
how it helps you with the answer