This is only explanation. What are the questions for it?
No se la respuesta talbes pon una foto para que sea más fácil
aquí todos hablan inglés tienes que poner donde dise la materia en spanish/español
Answer:
The areas that have had the action potential are refractory to a new action potential.
Explanation:
Hope this helps<3
A.) Cytosine bases
But also technically C, although that is a bit trivial.