The answer is A because they are parts of algae
The answer is B. they embody the idea of descent with modification.
Answer:
Nitrification.
Explanation:
It is a part of the Nitrogen Cycle. The bacterias can convert ammonia into nitrite and nitrate, these compounds are fundamentally important for all life. They are used for the creation of proteins and amino acids.
I hope this answer helps you.
I think the answer is diabetes, specifically type 1.
