Answer:
Rune Elmqvist is designated with the credits of establishing the first artificial cardiac pacemaker.
Explanation:
All of these choices challenge homeostasis
the back bones and the brain bones?? I don't know this
CO2 or carbon dioxide is an example of a compound element. A compound element is formed into a new substance when two or more elements are chemically combined. One of the most common examples is CO2 or carbon dioxide. The elements combined are carbon and oxygen.
