I think its 60 years old idk though
this is the exchange of gases and nutrients.
It took me a bit but i figured it out!
Hope this helps you some!:)))
Answer:
Both the respiratory and circulatory systems works in coordination in order to purify the blood.The heart continuously pumps blood and the lungs at alveolar sacs the CO2 and O2 get exchanged.Continuously through the diffusion.
From body parts the blood reaches at heart through Vena cava To right atrium,then from Right ventricle through pulmonary artery it reaches to lungs and get purified.Form there it again comes back to heart through pulmonary vein and again through Aorta it again reaches to the body parts.
Hope it helps....
The answer to that question is true,
foods that have 35% of the daily intake of nutrient are classified the same as those that have 20%
