photo by Mike May

Some birds eat Japanese beetles. How many calories are in the typical Japanese beetle?

1. 5 calories
2. 50 calories
3. 500 calories
4. 5000 calories

Not all parts of the beetle are digestible. What percentage of the above calories are in the exoskeleton?

1. 20 percent
2. 40 percent
3. 60 percent
4. 80 percent

Bomb calorimetry by Karen Bennett

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