The heart is part of the cardiovascular system and is made of cardiac muscle. Cardiac muscle has special characteristics that distinguish it from other types of muscle tissue. Which of the following are characteristics of cardiac muscle? Check all that apply.

Explain the significance of the increased cell specialization of the volvocine line

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

Which statement about relative potential energy of electrons is correct? a. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 2 s orbital of the second electron shell. b. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 3 p orbital of the third electron shell. c. an electron in the 3 p orbital of the third electron shell has more potential energy than an electron in the 2 p orbital of the second electron shell.