Compare and contrast the Darwin-Wallace mechanisms of natural selection and evolution with Lamarck’s theory of
inheritance of acquired characteristics. Explain how both of these concepts might apply to the development of long necks
in giraffes What will be an ideal response?
In the case of Darwin-Wallace’s ideas: In the population of ancestral giraffes there was some
natural variation; some of the animals had longer necks than others. Those with longer necks
could reach higher into trees and eat leaves that their competitors couldn’t reach. These
longer-necked animals were more successful, so they survived and reproduced. Finally, after
many generations, the animals looked like modern giraffes.
In the case of Lamarck’s ideas: During periods of drought, ancestral giraffes had to reach
higher in the trees for nourishment. This activity stretched the giraffes’ necks and they passed
this acquired characteristic directly to their progeny.
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Which of the following statements describes how a strong vertical wind shear relates to thunderstorms?
A. It intensifies the severity of thunderstorms. B. It initiates the formation of severe thunderstorms. C. It inhibits the formation of severe thunderstorms. D. It reduces the severity of thunderstorms.
Most of the Earth's organisms have been identified and classified
Indicate whether the statement is true or false
On a world map of climate regions the lines that separate the regions mark locations of abrupt changes in temperature or precipitation conditions
Indicate whether the statement is true or false
If a glass manufacturer has only a few ________________ of reducing pollutants, it will ____________________ .
A. costly ways; end up paying the pollution tax. B. inexpensive ways; incur the pollution tax instead. C. costly ways; do so to minimize its pollution taxes. D. inexpensive ways; buy the most expensive technology.