Two Species of Drosophila Have Been Competing in the Lab

question 66

Multiple Choice

Two species of Drosophila have been competing in the lab for a long time. A researcher notes that over the course of time, the competition coefficients of these species have become smaller. What is the most likely explanation of this change?

• A) Periodic disturbances
• B) Allelopathy
• C) Character displacement
• D) Competitive exclusion

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