Some Birds Follow Moving Swarms of Army Ants in the Tropics

question 31

Multiple Choice

Some birds follow moving swarms of army ants in the tropics. As the ants march along the forest floor hunting insects and small vertebrates, birds follow and pick off any insects or small vertebrates that fly or jump out of the way of the ants. This situation is an example of what kind of species interaction between the birds and the ants?

• A) consumption
• B) commensalism
• C) parasitism
• D) mutualism

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Definitions:

Mortality Table

A table that lists death rates according to age groups.

Mortality Table

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Taxes levied on both employers and employees to fund the Social Security program, which provides retirement, disability, and survivorship benefits.

Tax Refund

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