I don t understand what to put in the Net energy Gained (kcal) slots so pls help

Answer;

C. Their ability to make food

One characteristic used to place organisms into kingdoms is their ability to make food.

Explanation;

-Some of the characteristics that are used to place organisms into kingdoms includes; how they obtain food, cell structure and also the cell makeup.

-All living organisms are classified into groups based on very basic, shared characteristics. Organisms within each group are then further divided into smaller groups. These smaller groups are based on more detailed similarities within each larger group.