Question

why the rate of heartbeat is more in animals with less weight​

Answer 1

Small animals have a larger surface area to volume ratio than large animals. That is why heartbeat in smaller animals is faster than larger animals .

Hope it helps...

Answer 2

Answer:

if the body weight is more, heart beat is less because of the following reasons

• Small animals have a larger surface area.
• blood takes a lot of time to reach heart for oxygenation and circulation
• weight of heart will be more
• EX- blue whale- wt of the body is 1,50,000kg; wt of the heart 750kg and number of beats/min is 7..

i hope this helps you

thank you!!