True. A protein becomes functional only when it reaches its tertiary shape (3D). It is not necessary for the protein to reach the quaternary stage, but that is just a more complex functioning protein. It really is just two tertiary merged together. Example is red blood cells.
<span>''Science is the </span>study<span> of the </span>world around<span> us''.</span> The steps are explore, ask questions, and formulate a response to what your making and observation of.
<span>A: Which species of cricket did you collect? - apex</span>
<span>Plant species are dying out; seeds and nuts have all but vanished. Of these four finch species, but Finch 4 is most likely to survive under these conditions. So the answer would be letter D.</span>