Examlex
Emission nebulae get their red color from the red supergiants forming in them.
Arousal Stage
A phase in psychological and physiological response that involves increased alertness, energy, and readiness for action.
General Adaptation Syndrome
A model describing the body's short-term and long-term reactions to stress, consisting of three stages: alarm, resistance, and exhaustion.
Adrenal Glands
A pair of endocrine glands that release hormones that prepare the body for emergencies and stressful situations and also release corticoids and small amounts of the sex hormones.
Pituitary Gland
The endocrine gland located in the brain that releases hormones that activate other endocrine glands as well as growth hormone; often called the “master gland.”
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