If a neuron is exposed to tetrodotoxin ,sodium ions will be unable to cause the action potential,therefore being blocked from passing any impulses or receiving them...
Answer:
According to the picture, during a solar eclipse the moon must be in position A, interposed between the sun and the earth.
Explanation:
A solar eclipse is due to the interposition of the moon between the sun and the earth, which produces that the solar rays do not reach certain points of the planet.
The lunar phase that is shown during a solar eclipse is the new moon phase, because the satellite does not show the side illuminated by the sun. At this point, the moon must be close to the solar orbital plane for the phenomenon to occur.
