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Why does a population of fruit flies in a glass vial in the laboratory grow more slowly as it approaches its carrying capacity? A) Flies stop mating so that overcrowding does not occur. B) Chemical changes promote higher death rates in crowded populations. Eliminate C) Density-dependent factors lead to fewer births and increased mortality. D) Density-independent factors lead to fewer births and increased mortality.

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Answer:

Option C is the best answer  

Explanation:

The limited area provides limited resources for organisms living in that particular area. These limited resources include food, air, mating. etc . Limited resources mark significant effects on organisms mortality or death rate.

As fruit flies are densely populated in the glass vial due to limited area. This can cause fruit flies to live in limited resources. These density-dependent factors lead to increased mortality and fewer births.