Carbohydrates account for approximately what percentage of the body weight of animals?
A) 1%
B) 5%
C) 10%
D) 15%
A
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Which of the following reaction energies is the least exothermic (but still an exothermic reaction)?
A. ?125 kJ/mole B. 540 kJ/mole C. 125 kJ/mole D. ?540 kJ/mole E. not enough information given
In a significant 2004 paper reviewing 69 studies on world human population and carrying capacity, the authors estimated that the sustainable carrying capacity of humans for Earth is about
A) 600 million. B) 2.5 billion. C) 7.7 billion. D) 20 billion.
Where are most comets thought to reside? What eventually becomes of comets that orbit close to the Sun?
What will be an ideal response?
A coast that is tectonically quiescent, with little mountain-building or volcanic activity, is known as a(n) _____
a. coastline of emergence b. active-margin coast c. barrier beach d. passive-margin coast e. coastline of submergence