Medical professionals are concerned with the
increase in the number of bacterial species that
are resistant to antibiotics. once resistance
appears in a bacterial population, it spreads
rapidly. this is most likely because
(1) populations of resistant bacteria are small
(2) exposure to antibiotics increases the rate of
reproduction in bacteria
(3) resistant bacteria are small when compared
to non-resistant bacteria.
(4) resistant bacteria survive in greater numbers
and pass the trait to their offspring

(4) resistant bacteria survive in greater numbers  and pass the trait to their offspring

Mitochondria is the cell organelle that produced the energy that is needed in the body system in form of atp, that is why it is called the power house of the cell. energy is needed by the living organisms to carry out the activities which sustain life.  if the mitochondria is destroyed atp will not be produced. if the mitochondria is destroyed, energy production will stop and the affected living organism will not have the energy to carry out the necessary life processes; this will lead to the death of the organism.