Question

why birds and mammals have four chambered heart? explain with reference to aerobic and anaerobic respiration.

Answer 1

Birds and mammals are warm-blooded animals and maintain a constant body temperature by cooling themselves when they are in a hotter environment and by warming their bodies when they are in a cooler environment. Hence, these animals require more oxygen for more cellular respiration so that they can produce more energy to maintain their body temperature. Thus, it is necessary for them to have a four-chambered heart so as to separate oxygenated and de-oxygenated blood, so that their circulatory system is more efficient and can maintain their constant temperature.

Answer 2

Birds and mammals are warm-blooded animals and maintain a constant body temperature by cooling themselves when they are in a hotter environment and by warming their bodies when they are in a cooler environment. Hence, these animals require more oxygen for more cellular respiration so that they can produce more energy to maintain their body temperature. Thus, it is necessary for them to have a four-chambered heart so as to separate oxygenated and de-oxygenated blood, so that their circulatory system is more efficient and can maintain their constant temperature.

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