The table below describes two main types of exercise.
Type of Exercise
Example::
_ _ _ cardio_ _ _ jogging
anaerobic lifting weights
answer is cardio exercise
Answer:
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.
Explanation:
hope this helps...
and if u didn't get it its veins...