If the mixed populations were cultured for an additional 25 days, which of the following
predictions would be consistent with the data?
(a) both populations would stabilize at a small size.
(b) both populations would stabilize at a large size.
(c) both populations would be eliminated from the culture.
(d) one population would stabilize at a large size, and the other population would be eliminated from the culture.

A

Explanation:

Both populations would stabilize at small size 'cause the space in the petri dish or assay tube it's a factor that has an important role in the size of bacteria or fungus populations (in case you're working with bacterias or fungus). Each population will take a specific place in the culture media, due to space those populations could be so small or hard to differentiate from another population.

layer 3 is younger than layer 6.