What are two microscopic features of cardiac cells that help to distinguish them from other types of muscle cells?ANSWER: CORTICOSTEROIDS
I would say C.nervous system because that pretty much defines all of the answer choices.
"simple aerobic bacteria"relating
to or denoting exercise that improves or is intended to improve the
efficiency of the body's cardiovascular system in absorbing and
transporting oxygen.
Hot spots, Divergent plate boundaries and Convergent plate boundaries
(A) Instructions for each specific function
hope that helps