The Western Hemisphere’s two major ecozones are separated by the Isthmus of Panama.
The Isthmus of Panama or know as the Isthmus of Darien is the small strip of land that is situated between the Pacific Ocean and the Caribbean Sea. It links the South and North America and contains the Panama Canal and the country of Panama.
I think its seawall but not sure about the answer
Japan I think but not to sure
<span>that the patterns of polarity matched up on both sides is the answer </span>
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.
