There are songs on yt you can look up.I tried to put the links but it wouldnt let me
The cardiac cycle is defined as the steps involving the conversion of deoxygenated blood to oxygenated blood in the lungs and pumping it by the heart to the body through the aorta. So i think it would be stable over the years unless u have factors that will affect the cycle depending on a persons health
Answer:
B. Local animal populations would start to decrease.
Explanation:
