The shape of an enzyme is very important because it has a direct effect on how it catalyzes a reaction. An enzyme's shape is determined by the sequence of amino acids in its structure, and the bonds which form between the atoms of those molecules.
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It can have all of the measures except 89 because an Acute angle is 45 degrees and less.
homologous chromosomes ... sister chromatids
D. Visible light . Is the correct answer I hope this helps:)