Respuesta :
The study of a living being is called biology. There are two types of living species and these are plants and animals.
The correct answer is option C that is sunlight.
What is natural?
- The thing which is made up naturally and we can not be made up human process is called natural.
Every Cell requires energy for working and the unlimited source of energy is the sun.
Hence, every cell needs energy.
For more information about energy, refer to the link:-
https://brainly.in/question/3403229
