Answer:
The answer is C)
Explanation:
The predators were unable to keep the population of the mussels down. The mussels took more area of the rock. Other species that needed space did not return to the tidal pool. Otters can also be keystone species as they eat urchins. By doing so, they prevent the sea urchins form eating all the kelp plants and removing the entire habitat for many other species. The Keystone Species theory shows that this impact of few predators, that made up a minor amount of the total species, could have such a high impact on the ecosystem.
Answer:
A fold is a bend in the rock strata. Folding: This Is a type of earth movement resulting from the horizontal compression of rock layers by internal forces of the earth along plate boundaries. An unfold are termed as anticlines. The downfolds are termed synclines. Folding.
