Which list of words describes an action potential? all or none, neurotransmitters, membrane potential
membrane potential, neurotransmitters, electrical signals
electrical signals, all or none, neurotransmitters
all or none, membrane potential, electrical signals

all of them

Explanation:

because how else are you suppose to describe it unless you can see or it is described to you good luck

segmentation=endoskeleton=backbone=coelom=tissues

lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

explanation: