"do b-cells ever interact with pathogens that have infected a cell"

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

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