Smoking can increase someone's risk for developing macular degeneration. select the best answer from the choices provided t f

Aneuron is stimulated with an electric pulse. the action potential is detected at a point 3.70 cm down the axon 0.0052 s later. when the action potential is detected 7.20 cm from the point of stimulation, the time required is 0.0063 s. what is the speed of the electric pulse along the axon? (why are two measurements needed instead of only one? )

In which layer do organisms on earth love?

All phases of matter may have a fixed mass