A renewable energy source that taps into heat produced deep below ground is called
A) hydroelectric.
B) geothermal.
C) solar.
D) "subterranean" wind.
E) fossil fuel.
B
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Indicate which factors support the industrial melanism hypothesis. Check all that apply.
_____ Pollution inhibits the growth of dark colored lichen. _____ Dark moths have greater camouflage on trees in polluted woodlands. _____ Pollutants darken bark surfaces. _____ Light moths have greater camouflage on trees in highly polluted woodlands.
Which of the following structures constitute the stamen of a flower? Select all correct choices
A. stigma B. anther C. ovary D. style E. filament
Which of the following statements is not true regarding streptococcal pharyngitis?
A. It is usually caused by the viridans streptococci. B. It can lead to serious sequelae. C. It causes redness, difficulty in swallowing, and fever. D. It can lead to scarlet fever if it is an erythrogenic toxin-producing strain. E. It presents with a purulent exudate over the tonsils.
The function of erythropoietin is
a) reabsorption of sodium ions b) excretion of potassium ions c) reabsorption of water d) to stimulate red blood cell production e) to increase blood pressure