Answer: AV node will takeover the function of SA node if it’s not functioning, but definitely at a slower rate than SA node.
Explanation:
Tumor suppressor genes and proto-oncogenes cause cancer cells to divide uncontrollably.
The answer is B) proto-oncogenes.
The amount of energy<span> at each </span>trophic level<span> decreases as it moves through an ecosystem. As little as 10 percent of the </span>energy<span> at any </span>trophic level<span> is transferred to the </span>next level<span>; the rest is lost largely through metabolic processes as heat.
Hope this helps. </span><span />
<span>It sounds like a second degree burn .-. The outer layers of skin would be damaged.</span>
