A group of birds fly off the mainland and end up on a distant set of islands. Once there, they find a large number of opportunities for diversification and adaptation. This situation is best described as :

Dispersion?

Explanation: It has to do with how ecologists look at populations and how they spread. It's commonly looked at alongside Density, Growth, and Carrying Capacity. Not a very detailed answer, but I hope that helps?

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.