Which of the following is characteristic of all leukocytes?
A) They are the most numerous elements formed in blood.
B) They have cytoplasmic granules.
C) They are phagocytic.
D) They are nucleated.
D
Explanation:
A) Red blood cells are the most numerous elements formed in blood.
B) Not all leukocytes have cytoplasmic granules.
C) Not all leukocytes are phagocytic.
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Which of the following does not occur when smooth muscle contracts?
a. Walls of blood vessels help maintain blood pressure. b. Food moves through the digestive tract. c. Bones of the skeletal system move. d. All of the above occur when smooth muscle contracts.
The only direct connection between the pectoral girdle and the axial skeleton is where the
A) clavicle articulates with the humerus. B) clavicle articulates with the manubrium of the sternum. C) coxal bones articulate with the femur. D) vertebral column articulates with the sacrum. E) clavicle articulates with the xiphoid process.
Lactic acid, a product of metabolism, is considered a volatile acid
Indicate whether this statement is true or false.
Which of the following nutrients yield the highest amount of energy per gram when metabolized?
A) vitamins and minerals B) proteins C) foods and beverages high in caffeine D) fats