Question

The rate of the heartbeat in the rabbit is nearly
A) 92 per minute
B) 100 per minute
C) 150-300 per minute
D) None of the above

Answer 1

Hint: The number of contractions made by the heart in a minute is called heart rate or beats per minute and it works in a particular rhythm. And one contraction is called a beat. The heart rate can vary from species to species depending upon the needs. If the heartbeats get higher or lower than the normal, it causes heart problems.

Complete answer:
Let's see what are the factors that can affect heart rate in different species. The first and most important factor is the physical need. The more oxygen required, the greater the heart rate value. The other factors include genetics, diet, stress, anxiety, psychological status, drugs, hormonal condition, environment, physical fitness, diseases, and also the interaction between these species. In humans, the heart rate ranges from 69 to 100 beats per minute.
Let's talk about the rabbit's heart rate. The resting or normal heartbeat range in the rabbit is 140 to 180 beats per minute. But while in the stressed conditions or the presence of any other factors (stated above), it can increase to more than 300. This may cause heart diseases in rabbits which can be fatal for them if left untreated.

So, the correct answer is C, 150-300 per minute.

Note: The high heart rate leads to heart diseases along with symptoms such as tiredness, decreased activity, bloating, decreased appetite, increased breathing rate, and sudden weight loss or gain. The highest heart rate is found in the pygmy shrew which is 1200 beats per minute and the lowest is found in the blue whale (while in the deep sea) 2 beats per minute.