Question

according to the endosymbiotic theory, which cellular process was involved in the evolution of mitochondria and chloroplasts? symbiosis phagocytosis endosymbiosis photosynthesis

Explanation:

The endosymbiotic theory posits that mitochondria and chloroplasts were once free - living prokaryotes that were engulfed by a larger cell through phagocytosis. Over time, a symbiotic relationship developed. Endosymbiosis is the overall concept of the relationship that formed after phagocytosis. Photosynthesis is a process that occurs in chloroplasts but is not the cellular process involved in their origin.

Answer:

phagocytosis