What happens when the rate at which we metabolize atp is slower than the rate at which we consume atp?
a. muscles are no longer able to contract
b. oxygen leaves the muscles
c. muscles run out of lactic acid
d. calcium cannot enter the sacromeres

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 the context of the neural impulse, which of the following is true about the depolarization of neuron membranes?

How can you keep track of variables in a science experiment?