Which three of the following are major functions of proteins *just type the number*
1- store energy

2- act as chemical messengers

3- major components of cell membranes

4- receptors of chemical signals

5- source of fibers

6- major component of skeletal muscle

What is it called when plants lose water though their leaves

What type of pollution does household garbage cause

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