Animals that eat only primary producers are called what

Describe how an electric generator works

What do science, technology, and disease have to do with each other?

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