A.moves from higher concentration to lower concentration
Answer:
A) Tomato plants grown in soil with no fertilizer
Explanation:
The control group is the group that you do not change anything. This is used as a basis or a baseline to determine whether changes you make in the experimental groups actually made a difference. An experiment is incomplete when you do not have this because it does not show any evidence that the change you made is what ellicits an effect.
Answer:
Pollinators are critical for blackberries and raspberries, and countless other fruits of summer.
Explanation: