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Observe the table given below and answer the questions.Name of the animalWeight of the bodyWeight of the heartHeart beat per minuteBlue whale 1,50,000 kgs750 kgs7Elephant 3,000 kgs12-21 kgs 46Man60 – 70 kgs 300 grams76Koaltit 8 grams 0.15 grams1200Why is heart beat more in animals with less weight ? |
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Answer» The time taken for circulation of blood from heart to body parts and body parts to heart is less. Therefore the rate heart beat is more in the animals with less weight. |
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