B. By mutating their DNA in response to environmental conditions to gain beneficial traits.
Answer:
<em>DNA replication </em>
<em>hope this helped <3</em>
Chloroplasts and mitochondria are organelles found in plant cells. Chloroplasts contains the cholrophylls while the mitochondria is the powerhouse of the cell where energy is found. In this case, the two organelles not only have inner membranes but also their own DNA and ribosomes
