Isotopes are variants of a particular chemical element which differ in neutron number (neutral particle)and all isotopes of a given element have the same number of protons (positive particle) in each atom.So isotope B of the sodium will have 11 protons, 11 electrons but it may have a wide range in its number of neutrons.
No one knows. There's no confirmation date at the moment. As that comment said, only time will tell.
I agree because an ecosystem and a host are basically the same thing.
Answer: I think it id b But im not positive
Population ...................
