Answer:
True
Explanation:
I'd say its true due to the fact Lichens are very sensitive to pollutants in general.
Answer:
A.
Explanation:
Because the trait undergoes a secondary loss; it has been there but it doesn't always appear in all generations.
Lymphedema is the condition I believe.
Answer:
natural selection I guess
<span>Bacterial genome is prone to mutational changes due to its simple nature and less efficient DNA repair mechanisms compared to humans, thus it has more chances of obtaining new genetic traits.</span>