Answer:
Development of the human heart during the first eight weeks (top) and the formation of the heart chambers (bottom). In this figure, the blue and red colors represent blood inflow and outflow (not venous and arterial blood).
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1. C
2. A
3. C
4. B
I think lol
environmental stressors are stresses to someone that causes stress (annoyance, irritation, any type of disturbance) These can include loud noises, alarms, weather, etc)
