On pages 3 the chapter notes Europeans were unaffected by smallpox compared to Native American cultures. Why were they unaffected?
What will be an ideal response?
The Europeans were unaffected because their exposure to multiple diseases had created an immunity that the Native Americans had not developed.
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A hockey puck slides off the edge of a horizontal platform with an initial velocity of 28.0 m/shorizontally in a city where the free-fall acceleration is 9.81 m/s2. The height of the platform above the ground is 2.00 m
What is the angle below the horizontal of the velocity of the puck just before it hits the ground if you ignore the effects of air? A) 77.2° B) 72.6° C) 12.8° D) 12.6° E) 31.8°
The lighter-colored bands in Jupiter's atmosphere are called ________.
A. zones B. cells C. belts D. layers E. gaps
Based of cellular biochemistry, how many different domains can life be classified into?
A) 4 B) 3 C) 2 D) 1
As you approach a steady light source, the wavelength of the emitted light appears
A) longer. B) shorter. C) the same.