Mitosis, a stage in the cell cycle, is important for what reason? A. reduction of the cell’s chromosome number
B. division of the cytoplasm
C. growth and repair of an organism
D. removal of diseased cells

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.

That is true tge cactus as a structural adaptation to its envirinment has it leaves reduced to spines. but this doesnt mean it cant produce food it produces food because of the presence of chlorophyll in its stem

The basic repeating unit of nucleic acids are known as nucleotides. a nucleotide consists of three distinct chemical groups.