Answer:
The heart's main job is to pump oxygen-rich blood to the body after it pumps ... Together, the arteries and veins are referred to as the vascular system. ... It plays an important role in helping the body meet the demands of activity, ... of diseases or conditions dealing with the heart and vascular systems.
Explanation:
Answer:
D
Explanation:
Most drugs are addictive and it is highly likely that "once" will turn out to be "just once more", and "it couldn't hurt to do it just once more".
Abdominal pains, coughing blood, and bloody urine.
Answer:
ATP can then attach to myosin, which allows the cross-bridge cycle to start again; further muscle contraction can occur. Therefore, without ATP, muscles would remain in their contracted state, rather than their relaxed state.
Hope this helps!
That’s an entire assignment right there, I would help but I feel more context is needed
