(Question)
Q: What causes cobalt chloride to turn pink? Choices: - discussed 2 + ions - show 2 + ions - h20 + ions - co 2+ ions A:
(Answer)
co 2+ ions

(Question)
Q: Found in cord blood and other sources, what kind of cells hold the promise of renewing and repairing body tissues? Choices: - red blood cells - white blood cells - neurons - stem cells A:
(Answer)
stem cells

(Question)
Q: Mammals generate heat primarily by maintaining a high rate of what? Choices: - reproduction - respiration - movement - metabolism A:
(Answer)
metabolism