Answer: The atomic number
Answer:
it again form new blood and this process is very fast process . our bone marrow form the RBC within one day ,that we loosed
FADH₂ molecule is <span>produced during the citric acid cycle feeds into the electron transport chain.</span>
2. Chemical because it can’t change back
3. Physical because it can be changed
Answer:
The correct answer is hydrogen.
Explanation:
Stars in the main sequence will remain in the main sequence as long as their cores contain hydrogen atoms. This is because main sequence stars run on the hydrogen atoms within their core to prevent them from falling to the force of gravity. Once these hydrogen atoms run out, the star is no longer considered a main sequence star, gravity takes hold, and the star collapses.
