How many hours of sleep will i get if i fall asleep now?

What initially causes a nerve impulse? release of enzymes out of the neuron movement of chemicals into the dendrites of the neuron pathogens attacking the dendrites of the neuron red blood cells bathing the neuron

Body systems are not completely independent they integrate and work together describe one example of the integration between body systems

Why is it incorrect to say that mitochondria function only as energy factories with cell