Active transport could transport material across the membrane against the concentration gradient
Answer:YES
Explanation:A PDA is a type of congenital heart defect. A congenital heart defect is any type of heart problem that's present at birth. If your baby has a PDA but an otherwise normal heart, the PDA may shrink and go away. Some children need treatment to close their PDAs.
Potable water is water that is safe to drink
I believe the answer is energy. Hope this helps. (ノ◕ヮ◕)ノ*:・゚✧