“Endo” means “internal” or “within.” “Symbiosis” means “a mutually beneficial relationship.” How do modern cells demonstrate endosymbiosis?(1 point)


A. An amoeba-like organism engulfed prokaryotes, and they eventually became cells, one inside the other.


B. Organelles are inside cells and provide cells with energy and proteins, while the cellular membrane shelters the organelles.


C. Cells are inside the body and work together to function as a whole organism.


D. Cells benefit from one another by providing different functions and are found within organ systems of the body.