During cold weather, blood vessels located in the dermis undergo vasoconstriction restricting blood flow into the skin. this produces additional body heat by routing blood to what effector organ?

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.