DeShawn is studying homeostasis and circulation. To organize his findings, he constructs two models of the human heart, veins, and arteries: one to represent a non-smoker, and one that includes attributes typically found in a smoker. By comparing the two models, which relationship of cause and effect can DeShawn best explain?

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