Chimpanzees have been trained to communicate with humans through:

Chimpanzees have been trained to communicate with humans through sign language. Chimpanzees have relatively large brains and as such have complex social relationships and use simple tools. They can be taught to use sign language and some researchers suggest that they can communicate via this medium at the level of a 4 to 5 year old human. 

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.