Answer:
the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo chemical transformation or physical transport.
Explanation:
Answer:
Rana y elefante marino guala☺☺☺☺☺☺☺☺☺☺☺
Explanation:
kndjd
Answer: National park service
Explanation:
Im going to have to go with C. they pass through channels in the cell membrane
Which signal are you talking about?