A motorcar engine,for example, needs fuel IN the form of petrol.
It is burnt INSIDE the engine to produce the energy which drives the car.
But petrol,gas,coal,wood or any other form OF fuel can only burn IN the presence of oxygen. Thus, all machines and body cells are alike BY requiring oxygen to burn their fuel and thereby producte the energy needed to perform their functions.
Fuel or nutrients and oxygen are carried IN the blood to all parts of the body.
Nella Santa Claus! My name' s Nurana! I'm typing years old ! It's New Year soon and I want to congratulate you with this fantastic noliday! can you bring us snow so we could play snowballs and sledge? My parents and I will certainly decorate x-mas the present under it. Dear Santa do not forget about my sister Kate! she's 1 and she can't write letters , she likes play ing with dolls and will be happy to get on a new one. I would like to have a new interesting book under the x-mas tree. I like reading very much. Many thanks in advance Looking forward to meeting New Year . Nurana
The body is not different FROM any other machine.
A motorcar engine,for example, needs fuel IN the form of petrol.
It is burnt INSIDE the engine to produce the energy which drives the car.
But petrol,gas,coal,wood or any other form OF fuel can only burn IN the presence of oxygen. Thus, all machines and body cells are alike BY requiring oxygen to burn their fuel and thereby producte the energy needed to perform their functions.
Fuel or nutrients and oxygen are carried IN the blood to all parts of the body.
My name' s Nurana!
I'm typing years old !
It's New Year soon and I want to congratulate you with this fantastic noliday! can you bring us snow so we could play snowballs and sledge?
My parents and I will certainly decorate x-mas the present under it.
Dear Santa do not forget about my sister Kate! she's 1 and she can't write letters , she likes play ing with dolls and will be happy to get on a new one.
I would like to have a new interesting book under the x-mas tree. I like reading very much.
Many thanks in advance Looking forward to meeting New Year .
Nurana