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Answer:
999999999999999999999999999999
Explanation:
Answer:
All of the above
Explanation:
An Anabolic steroid is synthetic testosterone so it mimics some of its effects. It can be used to build muscle tissue but abuse can cause all of these choices.
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Explanation:
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium. The pulmonary vein empties oxygen-rich blood, from the lungs into the left atrium.