How Do Primary Endosymbionts of Insects Differ from Secondary Endosymbionts

Multiple Choice

How do primary endosymbionts of insects differ from secondary endosymbionts?

A) Primary endosymbionts provide the insect with nutrients.
B) Secondary endosymbionts protect the insect from harmful bacteria.
C) Secondary endosymbionts do not remain with the host after three or four generations.
D) Primary endosymbionts show evidence of co-speciation with the host insect.
E) Secondary endosymbionts can easily be cultured.