The feed conversion ratio (FCR) for humans is not typically measured in the same way it is for livestock, as human diets are varied and complex. However, FCR can be conceptually understood by comparing the energy consumed (calories from food) to the energy expended (calories burned). Studies suggest that humans have an FCR ranging from 10 to 20, meaning it takes approximately 10 to 20 calories of food energy to produce 1 calorie of body energy. This ratio can vary greatly based on individual metabolism, activity levels, and dietary choices.
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A conversion factor is a ratio equivalent to one.
5280 feet = 1 mile so the conversion unit ratio is 1/5280 miles per foot
The answer to this question depends on the ratio os what aspect of plants and humans you are interested in. Is it the ratio of:the number of speciesthe number of individualsthe total (bio-)mass.
conversion factor
There are 21,120 feet in 4 miles. The way to determine how many feet are in x miles is knowing the conversion ratio of feet and miles. The conversion ratio is: 5,280 feet = 1 mile.