Answer:
Circulatory
Explanation:
The heart helps pump the blood that travels to the rest of the body. The blood carries oxygen that is needed to travel around the body.
Answer:
a informs a person of everything they are about to experienceExplanation:
Answer:
Signal lights have an important safety function. They demonstrate deceleration and a change in direction of the vehicle, and make the vehicle more visible to other road users when it is dark or during poor visibility.
Explanation:
