Its estimated that during sprint events approximately 95% of energy production comes via the anaerobic system (85% phosphate, 10% anaerobic glycolysis), and only 5% from aerobic oxygen. Thus, the 100m sprint is an anaerobic event relying heavily on energy supply from the ATP-PC system!
4x, or the objective lens. Hope that helps you, my friend.
Yes, where the axon and dendrite end send the messages is the synapse and the electrical messages are known as neurotransmitters