The answer is D “Plaque can build up and prevent oxygen from reaching the brain”.
Answer:
left atrium
Explanation:
blood coming from lungs is oxygenated blood which is then carried to left atrium by pulmonary veins
Answer:
the International Amateur Athletic Federation (IAAF)
Over 2,000 years after the earliest Greek track events, in 1912, the International Amateur Athletic Federation (IAAF) was founded to function as the governing body for track and field sports all over the world. Today, as many as 25 events may be included in a track and field meet.
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Explanation: