Bacteria<span> can </span>obtain energy<span> and nutrients by performing photosynthesis, decomposing dead organisms and wastes, or breaking down chemical compounds.</span>Bacteria<span> can </span>obtain energy<span> and nutrients by establishing close relationships with other organisms, including mutualistic and parasitic relationships.</span>
Answer: Directional selection occurs when individuals with traits on one side of the mean in their population survive better or reproduce more than those on the other. ... Directional selection does the “heavy lifting” of evolution by tending to move the trait mean toward the optimum for the environment.
The key word is chlorophyll, dead give away for photosynthesis