What is the typical heart rate range for mice?

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Multiple Choice

What is the typical heart rate range for mice?

Explanation:
Mice have very fast hearts because of their high metabolism and small size, so their heart rate sits in the hundreds of beats per minute. A commonly used range that covers typical resting and active states in lab mice is about 300 to 750 bpm. At rest you’re around the lower end, and during activity or mild stress you can approach the upper end. The other options are too low or too narrowly/high; 60-100 bpm is more human-like, 250-450 bpm misses many mice at higher activity levels, and 500-900 bpm isn’t the standard resting-to-active range seen in most mice. Remember that factors like anesthesia, age, and strain can shift the exact numbers.

Mice have very fast hearts because of their high metabolism and small size, so their heart rate sits in the hundreds of beats per minute. A commonly used range that covers typical resting and active states in lab mice is about 300 to 750 bpm. At rest you’re around the lower end, and during activity or mild stress you can approach the upper end. The other options are too low or too narrowly/high; 60-100 bpm is more human-like, 250-450 bpm misses many mice at higher activity levels, and 500-900 bpm isn’t the standard resting-to-active range seen in most mice. Remember that factors like anesthesia, age, and strain can shift the exact numbers.

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