Rigor mortis occurs when Ca2+ links actin and the myosin globular head together in a rigor complex
Indicate whether the statement is true or false
F
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In subjects with type 2 (non-insulin-dependent) diabetes mellitus, which of these occurs?
A. Hypoglycemia is typically the first symptom. B. Pancreatic beta cell responses to increased plasma glucose concentration are normal. C. Severe ketoacidosis is common. D. Target tissues respond poorly to insulin.
After taking their wedding vows, a bride and groom often ceremonially use which of the following muscles before walking away from the altar?
A. Depressor anguli oris B. Orbicularis oris C. Levator labii superioris D. Platysma E. Quadriceps femoris
Which of the following affects the flight of a discus?
A. speed at release B. projection angle C. orientation angle relative to the wind D. all of the above
Which statement about the effect of age on the lymphatic-immune system is not true?
A. The thymus gland enlarges. B. The level of thymic hormones decreases. C. There are fewer antigen-presenting cells. D. There are fewer helper T cells. E. Red bone marrow mass decreases.