Pretest: Cells 1 Select the correct answer from each drop-down menu. During an experiment, readings for blood pressure in a person's body were found to be constant. However, when measured by a different blood pressure cuff, the readings differed by 15 polnts for each reading. This difference indicates that the results are but not

answer///multiple alleles;

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.