How does a nerve signal travel? (Last question, also an easy one!!) An electrical signal traveling as a wave.

Molecules signaling through plasmodesmata.

Molecules signaling through gap junctions.

Pheromone signal traveling between organisms.

Write a question about how changing temperature affects the gas inside the sports ball

Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.

The pilot of a helicopter hovers at an altitude of 1200 feet over a park. the angle of depression to the base of a statue is 17 degrees. the angle of depression to the nearest park exit, in line with the statue, is 14 degrees. to the nearest foot, what is the distance from the statue to the exit?