3. Circle the letter that indicates quantitative observations: a. The seed was about 3 inches long. b. Using a beaker the water quantity was 150 ml. c. The nurse used a thermometer and told me my temperature was 98.6. d. The object is circular and soft to touch.

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.