I believe it’s A. Not sure though
Answer:
The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.
Answer:
The answer is B) monomer of starch and cellulose.
Carbohydrates are a source of quick energy (ex: sugars, starches) and are made up of monosaccharides, while proteins determine how your body looks and functions and are made up of amino acids.