<span>A person must inherit two copies of a defective CF gene -- one copy from each parent -- to have the disease. People who inherit only one copy are considered CF carriers and do not have the disease, but they can pass their copy of the defective gene on to their children.</span>
Answer:
the oxygen from the environment will flow into the cell
Explanation:
because by diffusion, areas of high concentration flow to low concentration :)
My best choice is C ^-^ brainiest plz
<span> It's the process by which organisms change over time as a result of changes in heritable physical or behavioral traits.</span>
