Answer to Question 1
Waist-to-height ratio is determined by dividing the waist circumference in inches by the height in inches. Before WHtR can be implemented on a global scale and used to compare risk factors across populations, worldwide health organizations will need to agree on precisely where (how high or low on the waist) the measurement should be taken. An abdominal measurement, for example, could be taken at the naval or at the narrowest point of the waist, as no clear landmark has been set. Taking the measurement just below the rib cage may provide the best estimation of visceral fat, but is not widely used as of yet. It is important when recording your own abdominal measurements to note the site where the measurement was taken and to be consistent with future measurements.
Answer to Question 2
a
These species are all at risk of extinction. Species with slow life-h
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