Whats The Options For This Answer ?
I think it’s organism since it already stated skeletal and respiratory then it means it cannot be tissue or organ because skeletal is included so i say go for organism
The leaves!
They have chlorophyll to take energy from the sun and use it.
<span>The factors that are responsible for the ABO blood type, or the Rh, are located on the surface of the red blood cells, also known as erythrocites. They are used to deliver oxygen to the body tissues. </span>