Sickle cell disease is caused by
A. a mutation.
B. a lack of intrinsic factor.
C. an excess of hemoglobin.
D. a lack of dietary iron.
Answer: A
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The conjunctiva is a mucous membrane that covers the entire anterior surface of the eyeball, including the cornea.
Answer the following statement true (T) or false (F)
What type of muscle contraction is employed by the elbow flexors when slowly lowering your backpack to your desk?
A. concentric B. eccentric C. isometric D. isokinetic
Which gland is formed by an evagination from the floor of the diencephalon?
A. anterior pituitary gland B. posterior pituitary gland C. thyroid gland D. adrenal glands E. pancreas
Which of the following individuals would have more mitochondria in her skeletal muscle?
A. A newborn B. A 50-year-old sedentary computer programmer C. A long-term hospice patient D. A 22-year-old soccer player E. A model on a reduced-calorie diet