Your friend says the helium in your birthday helium balloon comes from radioactive decays. what is your response?

I would say that the friend is saying a truth. The helium in balloons would most likely come from radioactive decays. Helium is said to be one of the common element in the Universe next to hydrogen. Helium, which is used for commercial purposes, is obtained from natural gas. It is mixed with this gas a result from radioactive decay of materials underneath the ground.

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.