A gene is <u>Co</u><u>d</u><u>e for a trait, </u><u>are</u><u> </u><u>small</u><u> </u><u>sections</u><u> </u><u>with</u><u> </u><u>DNA</u><u> </u><u>strand</u><u>,</u><u> </u><u>Are</u><u> </u><u>blueprints</u><u> </u><u>for</u><u> </u><u>proteins</u><u>.</u>
- <em>Therefore</em><em>,</em><em> </em><em>Option</em><em> </em><em>D</em><em>.</em><em> </em><em>All</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>above</em><em> </em><em>is</em><em> </em><em>correct</em><em>!</em><em>!</em><em>~</em>
During exercise there is an increase in physical activity and muscle cells respire more than they do when the body is at rest. The heart rate increases during exercise. The rate and depth of breathing increases - this makes sure that more oxygen is absorbed into the blood, and more carbon dioxide is removed from it.
Answer:
An organism's DNA affects how it looks, how it behaves, and its physiology. So a change in an organism's DNA can cause changes in all aspects of its life. Mutations are essential to evolution; they are the raw material of genetic variation. Without mutation, evolution could not occur.
Explanation:
Muscles are attached to bones by tendons
