<span>Segmented or Non Segmented,
Teeth Patterns,
Exoskeleton or Endoskeleton,
Digestive System, And Locomotion.
These are the only characteristics of an Animal, the other's deal with plant structures.</span>
I believe one needs information about the individual's Age, Weight, Height, and Gender.
The Dietary reference intakes define the daily requirement for energy as Estimated Energy requirement. The EER is based on calculations that account for an individual's energy intake, energy expenditure, age, sex, weight, height, and physical activity level.
1. respiratory system
sorry i’m not sure about the second one !