Which is a function of the collecting ducts? which is a function of the collecting ducts? absorb electrolytes actively and water by osmosis in the same segments form a large volume of very concentrated urine or a small volume of very dilute urine form a large volume of very dilute urine or a small volume of very concentrated urine absorb water and electrolytes into the tubular network?

I believe the function of the collecting ducts is to absorb water and electrolytes into the tubular network. The collecting duct participates in electrolyte and fluid balance through reabsorption and excretion, processes that are regulated by the hormones vasopressin (ADH) and aldosterone. 

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.