The most blank animals have the most blank brain structures. Billions of blank in the brain's left and right blank transfer signals to different parts of the cerebrum . The frontal and temporal blank have different functions, but both are made of folds of blank .

answer: i cant find your answer. do u have another way i can answer it for you : )

explanation:

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.