ScienceCâu 103 / 120
Which blood cells are primarily responsible for carrying oxygen?
a.White blood cells
b.Platelets
c.Red blood cells
d.Plasma cells
Giải thích
Red blood cells contain hemoglobin, a protein that binds oxygen. They transport oxygen from the lungs to the body's tissues.
Luyện miễn phí toàn bộ 120 câu hỏi — không cần đăng ký.
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