Describe AP generation with the heart compared to skeletal: skeletal has depolarization (Na+); repolarization and hyperpolarization (K+); cardiac conduction system - prepotential (sodium); threshold and depolarization (Ca++); repolarization (K+); muscle cell contraction - depolarization phase- Na+ ions; early repolarization-K+ channels; plateau phase-Ca++ channels; K+ leaves to complete repolarization;

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the

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.

Ithink the answer is true