Read the description below. what does it illustrate?

old inhabitants to an area die or move out, and new organisms move in. this causes regrowth and change in the community over time.

symbiosis
biodiversity
competition
succession

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