Question

According to endosymbiotic theory:

Answer 1

According to endosymbiotic theory:
Answer A. primitive eukaryotes partnered with prokaryotic cells to the mutual benefit of both
B. precursor mitochondria were originally prokaryotes
C. precursor chloroplasts were originally prokaryotes
D. primitive eukaryotes lacked the means to efficiently obtain energy from glucose

Answer 2

Answer should be the second choice, B.

Answer 3

If you look up the word "symbiotic" you will see your answer.