There isn't a meaning to life you have to figure it out for yourself. everyone is different so you'll have a different answers than anyone else
Metalliods because they have both characteristics of metals and non metals
You need to make 3 pies, one for NaCl, one for C6H12O6, and one for NaOH.
NaCl has two elements, Na (sodium) and Cl (chlorine).
C6H12O6 has three different elements, carbon (C), hydrogen (H), and oxygen (O).
NaOH has three elements, Na (sodium), O (oxygen), and H (hydrogen).
The cycle runs like this:
Deoxygenated blood enters from the body to the heart via the superior/inferior vena cava. It goes directly to the right atrium and down to the right ventricle. From there it'll pass through the pulmonary artery into the lungs where diffusion will happen in the capillaries. Gas exchanges will occur and the blood will become oxygenated and return to the heart via the pulmonary vein. From the pulmonary vein it will enter back into the left atrium and then will give the final pump of oxygen rich blood into the aorta and then into the entire body.