I am a simp for kirishima. and like 67 other 2d characters but we dont talk about that

Which of the following represents a negatively charged ion? of t 7

Which blood cell spend most of their time in the lymphatic system?

When is your breathing likely to speed up? a. when your white blood cells increase b. when your cells need more energy c. when your heart cells need more carbon dioxide d. when your blood cells have too much oxygen