what is the reason for the rapid decline in biomass that occur past a critical flow rate in a chemostat

Which best describes the scientific process

The procces of farming organism from the sea is ?

Which conditions are necessary for natural selection to occur? select all of the answers that apply. a. inheritable adaptations vary among individuals. b. the population size is increasing. c. more individuals are born than can survive. d. fitness varies among individuals. e. the environment changes suddenly and drastically.