Friday, January 27, 2012

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



An ecologist hypothesizes that predation by a particular owl species is the major factor controlling

the population of a particular rabbit species. If this hypothesis proves to be correct, which effects could be expected in this rabbit-owl pair?

A) A fall in the owl population should cause a fall in the rabbit population.

B) A fall in the rabbit population should cause an increase in the owl population.

C) An increase in the incidence of disease in the rabbit population should not change the owl

population.

D) An increase in the rabbits' food supply should not change the owl population.

E) An increase in the owl population should cause a fall in the rabbit

Which one of the following organisms best illustrates K-selection?
im not going to give you anymore answers... you need to do your own homework or you're not going to actually learn anything...



some advise maybe..



think about what K-selection needs... a stable environment with as many being produced as can survive



if there are more owl what will/or will not happen tot he rabbits?

if there are less?


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