i think it is b becuase it gives a lot of infor mation
Answer:
It is thin tissue that lines the alveoli
Hope this helps.
The scientific theory of evolution states that populations change over time in response to changes in the enviroment
Answer:water and sugar(also known as glucose)
Explanation:During the process of photosynthesis plants break apart the reactants of carbon dioxide and water and recombine them to produce oxygen(o2) and a form of sugar called glucose (C6H12O6)