6. the skeletal structure shown would be classified as part of which of the following?
a. axial skeleton
b. respiratory skeleton
c. appendicular skeleton
d. protective skeleton

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? )

Look at the photo of the leaf. which term best describes this leaf?

Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above