Tiks izdzēsta lapa "If an Enemy Germ Invades You". Pārliecinieties, ka patiešām to vēlaties.
Red blood cells, or erythrocytes, contain the hemoglobin that carries oxygen and carbon dioxide across the body. Hemoglobin provides pink blood cells their Characteristic color. When it's oxygen-rich, it appears reddish
Tiks izdzēsta lapa "If an Enemy Germ Invades You". Pārliecinieties, ka patiešām to vēlaties.