The theory of evolution states that all life is related and that organisms have become more complex over time. which phrase describes a theory

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.

im not intirely sure but i think the anwser is d relative humidity

it is called the mitotic spindle