Which statement describes unity within a species?
a) a species can be distinguished by body shape and other structural features.
b) members have the potential to interbreed in nature and produce viable, fertile offspring.
c) a species is described in terms of its interaction with living and non-living environment.
d) the dna sequence lacks similarities.

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.

There are  advantages  to being  multicellular  rather than unicellular. these include allowing: the  organism  to be larger.