<em>Answer:</em>
<em>Paul's muscular fitness would best be improved through </em><em>gymnastics</em><em>. </em>
<em>Explanation:</em>
<em>Gymnastics is an excellent sport that is extremely taxing on the muscular system as it requires the person who performs different gymnastic elements to use all the muscles in their body to be able to actually perform them. For that reason, gymnastics would be the best way of obtaining that.</em>
B. Red blood cells contain a protein that binds with oxygen.
Answer:
by moistening, heating, and purifying air as it proceeds down the airways
Explanation:
The upper respiratory system support good health by moistening, heating, and purifying air as it proceeds down the airways.
1. Eat right. Egg, spinach, Dark chocolate, milk.
2. Include lean protein in your diet<em>, beef, pork, egg whites.</em>
