Certain insects resemble the twigs of trees. Based on modern evolutionary theory, the most probable explanation for this is that
natural selections
of many variations
had occurred
the insect changed
because they ate
the wood of the
trees
genes were
transferred from
the trees to the
insects
a single gene
mutation caused
the resemblance

the median of the data is 4.5.

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.

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.