Question

Bacterial endosymbionts have lost much of their genome and are dependent upon their aphid hosts for survival. Similarly, the aphids depend on the endosymbiotic bacteria for the supply of amino acids that they provide. This interdependence is the result of

Answer 1

Coevolution

Step-by-step explanation:

Coevolution is my best guess as it answer our question of dependence of species on one another for survival brought primarily by natural selection (evolution)