Answer:
The control variable is the soldier.
Explanation:
The same soldier is used throughout the test
Describe<span> the physical </span>properties of the Sun<span> (sunspot cycles, solar flares, prominences, layers of the </span>Sun<span>, coronal mass ejections, and nuclear reactions) and the impact of the </span>Sun<span> as the main source of external energy for the Earth</span>
True - ligaments can be overstretched.
<span>Since mature red blood cells do not contain a nucleus, more room is available for Hemoglobin. It is a protein that is used in transporting oxygen and is extremely important for the body. </span>