Sunday, May 16, 2010

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]


No comments:

Post a Comment