What are Darwin's postulates of natural selection? What will be an ideal response?
ANS:Answer
should include:
? There are more offspring produced than will actually survive to reach a reproductive
age.
? There is genetic variation in all organisms.
? Some traits enhance the chance of survival in an environment. These traits are
considered to be favorable.
? Organisms with favorable traits in an environment are more likely to survive and
produce offspring. Thus, they are more likely to pass these favorable traits down to the
next generation.
? When a particular trait is passed down in large numbers due to natural selection in an
environment, it is selected for. It contributes to the success of an organism.
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For the purpose of gathering comparable data, the United Nations has imposed a precise definition of the meaning of urban upon the world's states
Indicate whether this statement is true or false.
If a rock is subjected to differential stress, then it means that
A) forces are pushing inward from all directions by the same amount. B) stresses are pushing outward from all directions by the same amount. C) stresses are pushing inward from all directions by the same amount. D) the amount of stress is greater in some directions than in others.
Why is collaboration often preferred over compromise in environmental law?
A) Collaboration involves mediation, which often leads to success. B) Collaboration is more likely than compromise to obey environmental statutes. C) Collaboration requires that each party give something up, which provides for a fair resolution. D) Collaboration forces opposing parties to work together for mutual gain.
Fact: The upper elevations of high mountain ranges are generally the places with the best wind resources for a region. From your understanding of wind power, why are these areas rarely used to place wind turbines?
A) The U.S. Government won't allow it. B) The winds are usually higher than the stress limits for the turbine blades. C) Construction is usually impossible in these areas. D) It is too cold for turbines to function. E) The turbines may interfere with the habitats of mountain goats.