o labelled

i labelled

u labelled

s labelled

brain cell neuron labelled

n labelled

y labelled

Animal Cell labelled

neuron labelled

x labelled

k labelled

q labelled

l labelled

t labelled

a labelled

h labelled

d labelled

e labelled

j labelled

mass energy formula labelled

m labelled

w labelled

c labelled

r labelled