The Most Likely Explanation for the High Rate of Sympatric

question 14

Multiple Choice

The most likely explanation for the high rate of sympatric speciation that apparently existed among the cichlids of Lake Victoria in the past is

• A) sexual selection.
• B) habitat differentiation.
• C) polyploidy.
• D) pollution.
• E) introduction of a new predator.

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Definitions:

Cichlids

A diverse family of freshwater fish known for their vibrant colors and complex behaviors, often found in tropical regions.

Cohort

Group of individuals born during the same interval.

Survivorship Curve

Graph showing how many members of a cohort remain alive over time.

Death Rate

The average number of deaths per unit of population over a given period of time.