In hyaluronic acid how is N-acetyl-D-glucosamine linked to D-glucuronic acid?
A) by an a(1 ? 3 ) glycosidic bond
B) by an a(1 ? 4 ) glycosidic bond
C) by a b(1 ? 3 ) glycosidic bond
D) by a b(1 ? 4 ) glycosidic bond
D
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Pastoralism
A) requires elaborate fencing networks and patterns to manage herds. B) is most commonly practiced in drier climates unsuitable for subsistence agriculture. C) is increasing in important in most parts of the world. D) has largely replaced intensive subsistence agriculture in Southeast Asia.
It is estimated to take _____ for the ocean's volume to circulate through the oceanic crust at spreading centers
a. 1 million years b. 10 million years c. 100 million years d. 1 billion years e. 10 billion years
Describe another setting in North America where an international border potentially complicates an important environmental issue
What will be an ideal response?
The body's natural cooling mechanism, in which sweat is converted to a gas, is called:
A. radiation. B. convection. C. conduction. D. evaporation.