What is an ecosystem? a. It is one species that lives in a given area.
b. It is a single plant and a single animal that live in a given area.
c. It is the members of the same species in an area.
d. It is a community of plants, animals, and their physical surroundings.

The graph shows the amount of global warming happening in different ecosystems. which populations of organisms will likely decline the most as a result of climate change, and why? a.coral reefs because of the loss of the symbiotic algae living within their bodies b.penguin populations because the fish they eat will move into warmer waters c.mountain-dwelling birds because rising sea levels will relocate their food sources d.large cats in the rainforest because of decreased habitat loss for their prey