Answer: Domain.
Explanation: I'm glad that you asked this question. When it comes to to biology and the identification of species, domain is the highest rank that you can find in taxonomy. If you look at the taxonomy ranks, this is the order: Domain > Kingdom > Phylum > Class > Order > Family > Genus > Species.
That is why domain includes all of the rest, because in the pyramid, it is the one at the top.
B. distribution of sunlight.
Answer/Explanation:
I think that the difference is that biofilms are communities that adhere to a surface. Colonies on agar plates do that. The cells are connected to each other and adhere to a surface. Each feature of biofilms depends on the environmental factors and the resulting physiology...!
Please mark brainliest! :D