The answer is A. random gene pool changes in small population.
The Celsius scale. Americans use the other one.
The digestive system works<span> very closely with the </span>circulatory system<span> to </span>get<span> the absorbed nutrients distributed through </span>your body<span>. The </span>circulatory system<span> also carries chemical signals from </span>your<span> endocrine </span>system<span> that control the speed of </span>digestion<span>. Hope this helps</span>
Answer:
Food is prevented from entering the trachea because C
