Coloration of urinary and digestive wastes is the result of the presence of which products from the breakdown of red blood cells?
a. iron
b. urobilins and stercobilins
c. carbon dioxide
d. all of the listed responses are correct
Ans: b. urobilins and stercobilins
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A. The embryo implants in the wall of the uterus. B. The chorion disintegrates. C. The placenta becomes functional. D. The amnionic fluid appears. E. The three primary germ layers are formed.
The synovial membrane reabsorbs fluid and may help remove substances from an
infected joint cavity. Indicate whether the statement is true or false
Exercise ______ and _______ bones
A) elongates; weakens B) thickens; elongates C) thickens; strengthens D) thins; atrophies
Gradual drifting of membrane potential toward threshold in autorhythmic cells is termed a
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