HELP ME NEED IT BY TODAY WILL GIVE BRAINLIEST AND 20 POINTS

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?

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

Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above