Answer:
tertiary structure
Interactions among the amino acid side chains within a single protein molecule determine the protein's tertiary structure. Tertiary structure is the most important of the structural levels in determining, for example, the enzymatic activity of a protein.
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<span> - </span><span>A typical meal contains </span>all four<span> types of </span>macromolecules<span>. </span>Living things<span> are made of </span>four<span>types of molecules, known as </span>macromolecules<span>: ... Highly specialized at what </span>they<span> do, proteins form both the railways and the motors that ... it exists as a single strand and </span>has<span> a special building block not</span>found<span> in DNA.</span>
Answer:
number 4 because they look similar in way like there maybe backwards?
A) A mixture because they can be taken apart without changing the physical form
identical twins that were adopted and raised by different families
Explanation: