Neuroendocrine glands, such as the adrenal medulla, consist of nervous tissue yet secrete chemicals known as neurohormones.
a. true
b. false
a. true
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The plasma membrane is referred to as a mosaic because of the presence of ________.
stationary proteins in a uniform arrangement carbohydrates in changing patterns phospholipids that are in constant motion moving proteins in a random arrangement
The function of the nucleus is to
A) direct the activities of the cell. B) form mitochondria. C) provide cell shape. D) transfer energy.
The growth spurt seen in puberty is triggered by
A. calcitonin. B. growth hormone. C. sex hormones. D. parathyroid hormone. E. thyroid hormone.
What is the primary function of the large intestine?
A. Secretion of water, salts, sodium bicarbonate, and enzymes B. Protein digestion and nutrient absorption C. Storage of vitamins and minerals D. Water and electrolyte absorption