In 1887, congress appointed specialists in the railroad industry as the first interstate commerce commissioners. future regulatory commissions followed this pattern because it a. solved the problem of how to elect the large number of commissioners needed. b. granted commissions total control over their industries since they had industry experts. c. increased the commissions' budgets from the federal government if they had expert leaders. d. commissioners better understand and solve the problems in their specific industries.

D.helped commissioners better understand and solve the problems in their specific industries.

Appointing regulators that understood their industry is important as they have the knowledge and understanding that can help them solve the challenges in that industry. This ensures that the industry is better regulated to the benefit of the public.

name two ways organisms join a population and two ways organisms leave a population. two ways organisms join a population are birth rate and immigration. two ways they leave are death rate and emigration.

explanation:

studies show tha in 7.5 billion years from now, the expanding sun will engulf, and destroy, the earth.