I would say A or C . but go with C .
Answer:
Bacteria.
Explanation:
Virus, Parasite, and Fungi all use a host for pure personal gain. Some strains of bacteria are beneficial, and are ingested regularly in the form of probiotics.
The main concept of cell theory is that cells are the basic structural unit for all organisms. ... Living things may be single-celled or they may be very complex such as a human being. ... Cells hold a variety of pieces and each cell type has a different purpose. ... The trillions of cells in your body make your way of life possible.
Answer:
A. the energy required to maintain vital body functions.
It affects society by taking causing conflicts from farmers and animal rights activists lol not exactly like what I said but you know something similar
