A specific type of bacteria reproduces through binary fission every two hours. If there are seven bacteria, to begin with, how many bacteria will there be after four hours?

Which of the following is true of metabolism in its entirety in all organisms? a) metabolism depends on a constant supply of energy from food. b) metabolism uses all of an organism's resources. c) metabolism consists of all the energy transformation reactions in an organism. d) metabolism manages the increase of entropy in an organism.