Answer: Similarities : they are both plant cells. Differences: Both plant cells differ in their functions.
Step-by-step explanation:
Differences:
The cell walls of the onion skin cells is thicker than the cell wall of the tomatoes pulp cells.
The function of the onion skin cell is to protect the onion while the function of the tomato pulp cell is to contain water and nutrients inside the fruit.
The onion stores its starch in its cell wall while tomato pulp cell don't store starch on its cell wall.
Similarities :
Both cells are plant cells.