Activity 4:
Direction:Write which organ system will be used in the following situations.Write your answer on the space provided.

choice's- muscular,skeletal, urinary, digestive, respiratory, circulatory, nervous

________1.you have to go to the bathroom because you drank too much water before run.
________2.You are about to go for a 5km run, eat more carbohydrates like rice to give you more energy.
________3.Frome a 5 km run,your breath gets faster and faster.
________4.oh!you accidentally hit the hollow block and hurt your toe.
________5.Your heart is pumping so fast when you stop a 15minutes jogging.​