The answer is B. many fungi and bacteria
The role of species in an ecosystem, consisting of such things as what it eats, when it eats, and where it lives is niche.
Answer:
There are lots of transitional organisms in the fossil record though it does take very specific and precise conditions for a fossil to be preserved, a deer that dies in a field will not end up in the fossil record so we are looking at a small sampling of the evidence (and a good thing too or there wouldn't be anywhere to walk with all the bones laying around)
Explanation:
This will help http://www.answers.com/Q/What_is_the_result_of_the_diversity_of_organisms_present_on_earth