The only answer that is not an example of a cell specialization is :
<span>Bacteria cells are small in size in order to easily diffuse in and out of the cytoplasm.
All of the other examples, the muscle, nerve and the rod and cone cells have specific cell structures, shapes, and proteins that enable them to execute their specific roles in the organism. </span>
The answer is DNA because genotype is the genes of an organism and genes = DNA.
<h3>
Answer:</h3>
Vertebrates have backbones, while invertebrates do not.
Humans, for example, are vertebrates because we have backbones.
D. cellular respiration and photosynthesis