What characteristic of a population will most the species to survive if a change occurs in the environmental conditions of its habitat? a. having genetic variation among its members b. having similar genes among all its members c. having genes for producing extra body fat shaving genes for good eyesight

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.