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Which generalization concerning movement by skeletal muscles is not true?
A) Muscles produce movement by pulling on bones. B) The bones serve as levers. C) During contraction the two articulating bones move equally. D) The movements produced may be of graded intensity.
Anatomy & Physiology
A buildup of waste products (urine) in the blood is termed:
A) uric acidosis B) hematuria C) uremia D) hemuria E) hemacytometer
Anatomy & Physiology
The zona pellucida represents a formidable barrier to sperm and can be penetrated only after the process called:
A. egg activation B. acrosome reaction C. sperm-egg fusion D. block to polyspermy E. modification of ZP2
Anatomy & Physiology
Which of the following enzymes is most active at an acidic pH?
A. amylase B. lipase C. trypsin D. pepsin E. chymotrypsin
Anatomy & Physiology