Question 1 (1 point) What means of particle transport requires energy?
a
Passive
b
Active
C
Facilitated
d
Osmosis

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