What are Darwin's postulates of natural selection?


· 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.

Environmental & Atmospheric Sciences

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By how much is global temperature predicted to rise over the next century?

What will be an ideal response?

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Which of the following is the hair-like part of a nerve cell?

A) the axon B) a dendrite C) the synapse D) the vesicle

Environmental & Atmospheric Sciences

A force of 1 N accelerates a mass of 1 kg at the rate of 1 m/s2. The acceleration of a mass of 2 kg acted upon by a force of 2 N is

A) half as much. B) twice as much. C) the same. D) none of the above

Environmental & Atmospheric Sciences

Describe three impacts industrialization and the development of agriculture have had on the Earth's ecosystems

Environmental & Atmospheric Sciences