Pls help due in a few mins

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z

What would most likely happen to a unicellular organism if it was exposed to a hypotonic solution for an extended period of time?

Which of the following is likely not involved in this example of ecological succession? a) the rotting remains of plants add to the fertility of the soil. b)the soil becomes so fertile that eel grass is replaced by other plant species. c) the roots from plants stabilize the sediment, keeping it in place. d) the concentration of salt becomes so high that all plant life is destroyed.