Home Page Test Answers After discovering that the shadows outside his window were only the trees in the yard, Ralph’s blood pressure decreased and his heartbeat slowed. These physical reactions were most directly regulated by his - Q/A (Question and Answer)

After discovering that the shadows outside his window were only the trees in the yard, Ralph’s blood pressure decreased and his heartbeat slowed.

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After discovering that the shadows outside his window were only the trees in the yard, Ralph’s blood pressure decreased and his heartbeat slowed. These physical reactions were most directly regulated by his – Q/A (Question and Answer)