Difference between continental drift and plate tectonics
What will be an ideal response?
> Continental Drift - theory proposed by Wegener that Earth was once a super continent (Pangea) then slowly drifted away 200-250 million years ago.
> Plate Tectonics - Drifting continents and the motion of the sea floor both result from the fragmentation and movement of the outer rigid shell of Earth called the lithosphere
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What role do receptor sites play in drug activity?
A) The receptor site is the location that a drug binds to, altering the function of a biomolecule. B) The receptor site is the same as the active site in an enzyme. C) The receptor site removes a drug from the blood stream, which limits negative side effects D) The receptor site is unrelated to drug activity. E) none of the above
Which of the following equations correctly describes the relationship between mass and energy when mass, m, is converted to energy, E?
A) E = mc B) E = 2mc C) E= 2 mc2 D) E= mc2
Why are the atomic masses listed in the periodic table not whole numbers?
A) Scientists have yet to make the precise measurements. B) That would be too much of a coincidence. C) The atomic masses are average atomic masses. D) Today's instruments are able to measure the atomic masses to many decimal places.
Given the following cities and their elevations, which list ranks these cities in order from highest surface pressure to lowest surface pressure? Denver, Colorado at 1,609 m (5,280 ft) Panama City, Florida at 2 m (7 ft) El Aguilar, Argentina at 4895 m (16,059 ft)
A) Panama City, Denver, and El Aguilar B) El Aguilar, Denver, and Panama City C) El Aguilar, Panama City, and Denver D) Panama City, El Aguilar, and Denver E) Denver, Panama City, and El Aguilar