Isotopes have Question 3 options:

A)

a different number of neutrons in their nuclei.

B)

a different number of protons in their nuclei.

C)

a different number of electrons.

D)

different numbers of both protons and neutrons in their nuclei.

a police officer and a ambulance

i think so it’s will be b yes i believe its

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.