Answer:
CFTR protein is found in the cells lining the lungs
Answer:
The answer is between a or b
but I strongly suggest the option a.
Evolution is the answer
Answer:
The answer is B trust me if you want its your dicision
Explanation:
Characoal has an energy more than the wood that’s why it burns hotter but if there is no sufficient air supply it will make the characoal less efficient