Starvation. When the body enters starvation mode or fasting for long periods of time, the body will start to tap on the stored fatty acids to produce ketone bodies. These ketone bodies will build up in the bloodstream, and will also be available if the brain has used up the stored glucose.
The answer is the second choice: variation, overpopulation, adaptation
Answer:
<h3><u>Required Answer</u><u>:</u><u>-</u></h3>
An increase in population, resources, natural disasters, and catastrophic events. Weather, natural disaster, human activity. As a population reaches its carrying capacity, resources become more scarce.
Answer: 3.friction
Explanation: friction is a force of resistance acting between objects in contact and tending to dampen their motion
