Google it maybe pay attention next time
Marathon’s consist of running/jogging/sprinting long distances, so first off it would be a good idea to increase stamina, which would be done by jogging everyday, increasing your distance everyday. Stretch your calf muscles upper leg muscles to avoid cramps while running too.
D- it does not improve speed to agility
Answer:
Because of a spinal reflex
Explanation:
Phototropism is a reaction to light but it only occurs in plants.
