Answer:
When a molecule moves down its concentration gradient is it participating in passive transport; moving up the concentration gradient requires energy making it Answer:active transport
<span>D) reduce the amount of electricity he uses.( good luck m8 tell me if I'm wrong</span>
Prairie dogs with established burrows
Water regulates heat by taking it in during the day and releasing it at night. Heat has a part in weather so they have a part in if their is a drought or not.
