A. 1) Endocrine glands secrete chemical substances called Hormones directly into blood. ... When we are afraid, the rate of heart beat increases, the breath rate will be faster, blood pressure increases, the hair on the body becomes erect and we get goose bumps.
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Explanation:
growth hormon pituitary gland
Answer:
A. 1) Endocrine glands secrete chemical substances called Hormones directly into blood. ... When we are afraid, the rate of heart beat increases, the breath rate will be faster, blood pressure increases, the hair on the body becomes erect and we get goose bumps.
Explanation:
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