Answer:
The answer is D.
They all live in or on a living organism.
Explanation:
These bacteria are special since they live in some of the most harsh habitats such as extreme. The majority are important decomposers.
Hope this helps you!
I think it is F.
It makes the Earth livable for us creatures. We get protected from the Sun's harmful rays reaching to Earth, which makes Earth feel comfortable. Atmosphere also contains Oxygen and we rely on that everyday.
Rising
Picture proof
