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kenny6666 [7]
3 years ago
13

After age ______ or so, total kilocalorie needs of physically inactive adults fall steadily throughout adulthood.

Biology
1 answer:
GalinKa [24]3 years ago
8 0
After age 30, total calorie needs of physically inactive adults fall steadily throughout adulthood due to a decrease in basal metabolism. Basal metabolism may be influenced by a number of factors such as age, basal metabolism generally decreases with age and with the decrease in lean body mass. Increasing muscle mass on the other hand through exercise has the effect of increasing basal metabolic rate.
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If everyone on the planet used the same amount of resources as an average American, what percent of the Earth would
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Answer:

D. 200%

Explanation:

While Americans constitute the 5% of the world population, they use around the 24% of the world's energy.

Then, if the 100% of the population were like the Americans, we have:

5%*x = 100%

x = 100%/5% = 20

the whole population is 20 times the population of the US, then the total energy used is 20 times the energy used in the US.

Then the energy that the 100% of the population would use is equal to:

20*24% = 480%

So we actually would need like 5 Earths.

The option is 200%

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