Answer:
circulatory system, lymphatic system
Explanation:
I just did the assigment and got it right.
Explanation:
The nucleus of an atom is surround by electrons that occupy shells, or orbitals of varying energy levels. The ground state of an electron, the energy level it normally occupies, is the state of lowest energy for that electron. There is also a maximum energy that each electron can have and still be part of its atom.
Hexane is an alkon of six carbon atoms. Hence the prefix hex-, meaning six.
