The graph below shows the growth of a fruit fly population.
Which statement best describes what is occurring with the fruit fly population in region X on the graph?
a
The fruit fly population has an average life span of 36 days.
b
The fruit fly population is no longer able to adapt to the changing environmental conditions.
c
The fruit fly population can no longer mate and produce fertile offspring.
d
The fruit fly population has reached the maximum number of organisms the habitat can support.