Which experiment should be conducted as a field investigation? observing changes in the nesting behavior of wood ducks measuring the fermentation rate of yeast in salt water determining the germination rate of a new soybean hybrid investigating gene expression in fruit fly offspring

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.