Which of the following is true of cytokines?

A) They are highly specific antibodies.
B) They are long lived.
C) They are stored in cells.
D) None of these is correct.


D

Environmental & Atmospheric Sciences

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The letters H and L on a surface weather map refer to regions of high and low ____

A) temperature B) winds C) pressure D) latitude

Environmental & Atmospheric Sciences

Hail is usually associated with ____ clouds

a. stratus b. cumulus c. stratocumulus d. altocumulus e. cumulonimbus

Environmental & Atmospheric Sciences

North-flowing winds along the West Coast of North America produce ____, which has no direct effect on climate or productivity

A) ?upwelling B) ?diverging currents C) ?downwelling D) ?converging currents

Environmental & Atmospheric Sciences

Drawbacks to the use of coal-based alternative fuels include all of the following except

A. it will significantly reduce the life expectancy of coal reserves. B. it will increase demand for conventional crude oil. C. it will increase environmental problems already associated with the mining and burning of coal. D. its production generates large amounts of carbon dioxide.

Environmental & Atmospheric Sciences