How do organisms use different types of carbon compounds?

Carbon is the building blocks of all living molecules. With the ability to form carbon-carbon bonds, many different compounds formed into different structures can be used for different purposes such as macromolecules.  

Ifound this on google “here are some features of the alveoli that allow this: they give the lungs a really big surface area. they have moist, thin walls (just one cell thick) they have a lot of tiny blood vessels called capillaries.for more information go to the website below › bitesize › guidesi hope this you for what your looking for. can you plz mark me brainliest?