Most mice living on the mainland of florida are brown, but the mice that live on the sand dunes of the barrier islands have white fur. it is intuitive that the light color of beach-dwelling mice is an adaptation for blending into their environment−and thus evading predators. how can this hypothesis be tested?

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.