Answer:
By exercising, it increases blood flow towards the muscles and digestive tract. This can help move food through the stomach, or digestive tract.
O2 (oxygen) is a covalent compound
The answer is “Organisms that contain functional recombinant DNA
I think the correct answer from the choices listed above is option A. It is the alveoli that is composed of single layer <span>surrounded by a network of capillaries. These are used to allow oxygen and carbon dioxide to move from the lungs to the bloodstream.</span>
I believe the correct answer would be metabolism. This comprises all of the reactions inside organisms that allows them to sustain life. There are two categories of such namely, anabolism and catabolism. Hope this answers the question.
