Talk in English I don’t understand
The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles. Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart.
It is Protozoa because it is not logical for it be any of the other. Hope this helped.
The answer is B.
It describes the relationship between photosynthesis and respiration accurately.
