False is has to be 145 Degrees F.
One way in determining your fitness level is trying to do a Full Sprint Run and holding your breath for as long as you can. That way you can determine your cardiovascular capacity and lung capacity. On improving your fitness levels you should do swimming, jogging and of course a balanced diet.
Answer:
in veins, blood flows towards the heart
Explanation:
You never put any of the answers
The liver's main job is to filter the blood coming from the digestive tract, before passing it to the rest of the body. The liver also detoxifies chemicals and metabolizes drugs. As it does so, the liver secretes bile that ends up back in the intestines.
