The period of time between the first heart sound and the second heart sound is called . a. ventricular diastole.
b. ventricular systole.
c. the P wave of the ECG.
d. ventricular filling.
e. atrial systole.

Ingredients used in tobacco products been banned?

Acne is caused by a. a strict diet b. eating at night c. hormones d. dry skin select the best answer from the choices provided. a b c d

Viruses ) manufacture their own atp, proteins, and nucleic acidsb) use the host cell to copy themselves and make viral proteinsc) use the host cell to copy themselves and then viruses synthesize their own proteinsd) metabolize food and produce their own atp