Answer:
With the concentration gradient through passive Transport
Explanation:
I haven't taken biology recently, but if I'm not mistaken, cells that use ATP can only passively do things.
Answer:
b warm wet air rises and punches cold dry air down causing the air to spin
Vitamin B12-- without it, it could be destroyed by the digestion process
Answer:
18:repeat the experiment again
Explanation:
Because repeating the experiment would get rid of inaccurate data
