Resonance is when a sound wave causes an object to: O A. move forward at the speed of sound.
B. vibrate at its natural frequency.
C. bend as it travels from one medium into another.
O D. reflect the sound wave back toward the source.
SUBMIT

answer; ///(b) it is composed of four protein chains and four heme groups;

what bodys are there orbiting?

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.