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lt is known that red muscle fibres in animals can work for longer periods of time continuously. How is this possible?

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The reasons that red muscle fibres in animals can work for longer periods of time Continuously are:

- They are thin muscle fibres
- They get plenty of oxygen supply due to the high amount of myoglobin
- Lactic acid is not formed here as they resort to aerobic respiration
- The number of mitochondria is high in number and hence has a good supply of energy through ATP molecules

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