Answer:
1. C
2. A
3. D
Step-by-step explanation:
1. It was originally believed that cells could form spontaneously. However, we now know that cells can only form from other cells through cell division. That is, B is true - that all cells come from preexisting cells
2. The picture shows an example of active transport, because the H ions are moved against their concentration gradient (from low to high) requiring energy in the form of ATP. This is in contrast to facilitated diffusion or passive transport, which do not require energy.
3. First of all, 2 of the answers are impossible. There is no such thing as a prokaryotic animal cell or a prokaryotic plant cell - all plants and animals are eukaryotic. Also, a nucleus indicates the cell must be eukaryotic.
The presence of a cell wall indicates that it must be a plant cell as opposed to an animal cell. Therefore, the answer is D.