Sulfur
strontium is not essential for living organisms. Sulfur is essential because all living things need it to survive. They also need sodium and selenium.
Essential materials, such as nutrients and oxygen have to be transported to different parts of the body in living organisms. Without this mechanism, life will not be sustained.
carbon
This element is oxygen.
carbon
strontium is not essential for living organisms. Sulfur is essential because all living things need it to survive. They also need sodium and selenium.
Hydrogen
phosphorus
Something would have to be essential.. Mother nature has chosen cells as an essential thing to all living organisms.
Essential materials, such as nutrients and oxygen have to be transported to different parts of the body in living organisms. Without this mechanism, life will not be sustained.
Essential materials, such as nutrients and oxygen have to be transported to different parts of the body in living organisms. Without this mechanism, life will not be sustained.
carbon
nitrogen
This element is oxygen.
Hydrogen
carbon
Carbon