A Species of Caterpillar Develops Toxic Spikes That Deter the Birds

question 20

Multiple Choice

A species of caterpillar develops toxic spikes that deter the birds that prey on it. Over time, the genetics of the bird population shifts so that an allele for a digestive enzyme that neutralizes the toxin becomes more common. This is an example of

• A) mimicry.
• B) coevolution.
• C) an invasive species.
• D) parasitism.
• E) mutualism.

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Definitions:

Population Density

A measurement of population per unit area or unit volume; often used in planning and understanding the spatial distribution of people.

Owning Slaves

The historical practice of individuals legally possessing other individuals as property and forcing them into labor without any personal freedoms.

Declined Steadily

A continuous or consistent drop in numbers, quality, or intensity over a period of time.

White Southern Families

Households located in the southern United States, historically associated with various social and economic structures, including during the era of slavery.