What is the relationship between the circulatory and respiratory systems? A. The circulatory system provides oxygen that the respiratory system uses to fill the lungs,
B. The respiratory system provides blood that the circulatory system uses to transport nutrients,
c. They work together to supply oxygen to tissues and rid the body of carbon dioxide,
OD. They work together to store the waste that blood collects from the body,

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