Saturday, January 14, 2012

Which one of the following organisms best illustrates K-selection?

Which one of the following organisms best illustrates K-selection?



A) the production of thousands of eggs every spring by frogs

B) mice that produce three litters of 10-15 babies in the course of a summer

C) a polar bear producing one or two cubs every three years

D) a species of weed that quickly spreads into a region of cleared trees

E) All of the choices are examples of K-selection.

Which one of the following organisms best illustrates K-selection?
K-selected type organisms are similar to humans, which dedicate more time to survival and food gathering over reproduction.



Because choices A, B, and D show the effects of fast growing populations, only choice C (involving polar bears) illustrates K-selection.



[Answer: C]


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