B.the mass of carbon dioxide plus water is less than that of paper plus oxygen.
"Substitution" is the type of mutation among the choices that are given in the question that the plant undergo. The correct option among all the options that are given in the question is the second option or the penultimate option. I hope that this is the answer that has actually come to your help.
The correct answer is c.Amphibians and reptiles. An example of similarity between the two classes of vertebrates is the presence of a heart with three chambers