Mutations are often referred to as the “raw materials” of evolution. State one reason that mutations are often referred to as the “raw materials” of evolution.

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

it's not c. i took the quiz and got it wrong. so my best guess is b.

have a great day, and hope this .