Food gives animals energy. Which of the following could be an animal's food? Select all that apply. A. nectar
B. a spider
C. water
D. a twig
E. a mushroom

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