Answer: C) Muscle cell
Detailed Explanation:
Muscle cells contain the highest number of Mitochondria
Variable would be the most logical
Through a sequence of steps called the immune response<span>, the </span>immune system<span>attacks these </span>pathogens<span>. ... This is the </span>immune system<span>. Cells. The cells involved are white blood cells (leukocytes), which seek out and destroy disease-causing organisms or substances</span>
Proteins are made up of 20 different amino acids