A Parrot Fluffs Out Her Feathers and Screeches When Another

question 9

Multiple Choice

A parrot fluffs out her feathers and screeches when another female bird approaches. She is

• A) communicating using only visual signals.
• B) sick.
• C) communicating using only auditory signals.
• D) communicating using visual signals and auditory signals.
• E) communicating using tactile cues.

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Definitions:

Experiment

A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact, typically involving the manipulation of variables under controlled conditions.

Random Sample

A selection method where every member of a population has an equal chance of being included in the sample, decreasing bias in data collection.

Scientific

Relating to or based on the systematic and empirical study of the natural world through observation and experiment.

Sexual Behaviors

Actions or practices related to the pursuit of sexual pleasure or reproduction.