In humans, the muscles responsible for moving the outer visible part of the ear, the pinna, are considered to be vestigial structures
Indicate whether the statement is true or false
TRUE
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The diaphragm is a large sheet of smooth muscle that separates the thoracic cavity from the abdomen.
Answer the following statement true (T) or false (F)
___________________________________ progressively destroys the body's T4lymphocytes, the immune system's key infection fighters.?
Fill in the blank(s) with correct word
Low levels of blood progesterone indicate that the corpus luteum has formed.
Answer the following statement true (T) or false (F)
Which of the following statements is false?
A. The intrinsic and extrinsic pathway of blood clotting requires clotting factors. B. The intrinsic and extrinsic pathway of blood clotting is begun by damaged tissues. C. The intrinsic and extrinsic pathway of blood clotting requires calcium. D. The extrinsic pathway of blood clotting is begun by damaged tissues.