What is the purpose of the valves in the heart? O To keep the blood flowing in only one direction
To prevent pathogens from entering the heart
To separate the heart into two sides
To control how fast the heart beats

Kara started an exercise program kara's sister works out with her on a regular basis and even talks to kara about her progress in the scenario what is another name for kara's sister? a. goal-setterb. self-monitorc. support systemd. nutritionist

Name three bad things that can happen to a teenager who has no refusal skills and no self-control:

What do you do if you fall over and bend your big toe all the way forwards?