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Biology 8 Online
OpenStudy (anonymous):

Which of the following is an example of how a biotic factor can affect the population dynamics in an ecosystem? a. Lack of water during a drought causes many of the individuals in a population to die. b. Seasonal temperature changes cause a species to migrate between two ecosystems. c. The population of a predator increases following an increase in the population of its prey. d. Two organisms in a mutualistic relationship compete for resources until one relocates.

OpenStudy (anonymous):

Only C and D have any biotic factor, but there is a change in population dynamics only in C.

OpenStudy (anonymous):

so its c?

OpenStudy (anonymous):

here A and B as abhi said are not biotic and option c is also not true as if the num. of preadators increase no. of prey decrease so it ,must be D

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