Information flow in biological systems is necessary for negative (regulative) feedback to operate. Which of these examples does NOT involve flow of information providing feedback? Bacterial genes for breaking down lactose are activated in the presence of lactose. Low blood sugar causes the liver to convert starch to sugar to be released in the blood. Drought kills many trees. Heat receptors send signals to promote sweating.

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