Isotopes of an element are defined has that has same atomic number but different mass number mean they have different number of neutrons
so the statement that best describe a similarity is
<span> same atomic number; different mass number
</span>so correct option is C
hope it helps
Answer:break down food to be absorbed in the bloodstream.
Explanation: it is the correct answer
yes, example : penis and vagina . #FACTS :)
You didn't show anything, but more energy would affect enzyme activity.