Some Birds Follow Moving Swarms of Army Ants in the Tropics

question 33

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) cooperation
• B) consumption
• C) commensalism
• D) parasitism
• E) mutualism

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Definitions:

Negative Symptoms

Features associated with reductions or deficits in normal emotional and behavioral functions, commonly observed in disorders such as schizophrenia.

Schizophrenia

A grave psychological condition defined by alterations in thought processes, sensory perception, emotions, communication, self-awareness, and conduct.

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A chemical element used in batteries and as a treatment for bipolar disorder.

Bipolar Disorder

A condition of mental health defined by significant variations in emotional state, encompassing highs (mania or hypomania) and lows (depression).