Not sure if I'm correct but my best guess is the cell membrane seeing as it surrounds the cell itself and is responsible for allowing certain molecules to diffuse in or out of the cell. Good Luck! :)
Answer:
The answer is D because it is the only example that takes place over a long period of time.
Explanation:
Answer:
1. Both Hydrogen should be positive and Oxygen is negative. I can't tell which photo that would represent however my best guess would be #2.
2. D
3. A
the answer is B) Cats favor the use of one paw over the other
Joyce figures that is humans have a dominant hand, cats must have a dominant paw too. The point of the experiment was to see which paw the cats used more, and that would be considered their dominant paw.
