An ionic bond is composed of a cation and anion, which are charged ions. You cannot have atoms with ionic bonds, because there is no opposite attraction between charges due to atoms having a net nuclear charge of zero. Therefore, a cation and anion would most likely be joined by an ionic bond.
I just took a test with this question and got the answer wrong for saying ethane. The correct answer is propane.
Behavioral Adaptation is something that is natural in animals that are used for survival. Example: Birds Migrating north during the winter.