When an individual muscle fiber receives a threshold stimulus, it contracts as much as possible. ... a threshold stimulus is the minimum amount of energy needed to make a muscle fiber contract.
Answer: B archea
Explanation
I recomend to carb up before long run
<span>Cell theory is really important because it provided, and still provides one of the great unifying theories in biology: one that says in spite of all the vast diversity of organisms, they are are united at a very fundamental level, namely the presence of cells.</span>
