Explain the relationship between the food we eat and energy in the body .

All parts of our body need energy to function. This energy comes from the food that we eat.

The body digests the food we eat by different digestive processes. The food is mixed with enzymes right from the mouth and into the stomach , then into the small intestines where it is completely broken down. The carbohydrates are broken down into glucose which is absorbed into the bloodstream from the small intestine.

Once in the bloodstream, glucose can be used right way to provide energy or can be stored in the liver and  muscles as glycogen, to be used later.

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.