A well designed experiment does not contain the following. random assignment to study groups non-random assignment to study groups manipulate the independent variable

What is the primary goal of human communities?

What is the problem in this article? what solution does the article propose?

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