Which of these structures produces a hormone that activates secretion of enzymes within it?
a. mouth
b. liver
c. large intestine
d. small intestine
e. stomach
E
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The second electron shell of an atom can hold a maximum of ______ electron(s).
A) 2 B) 3 C) 6 D) 1 E) 8
Mendeleev found that when he arranged the known elements according to their atomic mass, the entries in the table exhibited a pattern of chemical properties that repeated itself in groups of eight elements. This led to the generalization now known as:
A. an atomic model. B. valance electrons. C. the periodic table. D. the octet rule.
Hutton's theory of geological change included all EXCEPT
A. sudden extinction of species due to sudden, widespread disasters. B. extreme geological change occurring over a long period of time. C. production of layers of sediment through slow deposition. D. slow cycles of erosion and uplift.
How much urine does the average adult human excrete per day?
A) 125 milliliters (1/2 cup) B) 1,000 milliliters (1 quart) C) 250 milliliters (1 cup) D) 500 milliliters (1 pint) E) 1,500 milliliters (1.5 quarts)