PLS HELP ASAP Artificial organs can be made from all materials except:

Select one:
a. metals
b. polymers
c. glass
d. living tissues

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons