According to the endosymbiotic theory, which cellular process was involved in the evolution of mitochondria and chloroplasts?

What two fields of study provide the core information that is used to classify organisms?

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water