Electrons are found outside the nucleus.
In biology, diffusion is the movement of substances with the concentration gradient, which means they move from an area of high concentration to an area of low concentration. Facilitated diffusion is diffusion that is performed with the help of a carrier protein that can move particles of the substance.
Answer:
The ecosystem will change, maybe, there might be some problems, like some animals will start to die by being food for the alien species, or it might progress more.
Explanation: