Why are organisms with similar genetic sequences also likely to have similar protein configurations?

This is because the translation of proteins from DNA seems to be guided by a universal code. The same codons codes for the same amino acid across all species of organisms. Therefore the same codon sequence in a gene of a fish will code for the same protein as the same codon sequence in a human being.

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.