Dip both bird feathers in the oil, completely immersing them. Record how the appearance and weight of the feathers change because of the oil. Also, predict what will happen when you try to clean off the feathers by dipping them in hot or cold water.

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.