Answer:
When you exercise, the muscles you use require more energy. When exercise can be sustained, this demand is met primarily by aerobic means. Aerobic energy production in muscles results in increased gas exchange at the lungs, because more oxygen is taken in and more carbon dioxide is released.
Explanation:
It’s B. Carbon and energy are required to transform sugar molecules into water molecules
The reticular layer is composed of dense irregular connective tissue whose strength and toughness results from abundant collagen fibers.
The reticular dermis of the skin has many collagen fibers to support it because it provides strength and acts as a cushion. It also has elastin fiber that makes it elasticity.
The correct answer is D) The fossil record reveals intermediates that link different species. Hope this helps.
