There are several mechanisms through which reproductive isolation occurs which situation is a example of behaviour isolation

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.