Explain how the Earth itself is a system and describe an example of an interaction within this system.

Organisms that successfully adapt will leave to grownone of the above

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass

Vessels draining the myocardium of the heart, open primarily ,into which chamber?