Marine Mammals Use Echolocation to Detect Objects

question 41

Multiple Choice

Marine mammals use echolocation to detect objects. For echolocation to work, marine mammals must be able to

• A) generate rapidly produced clicks of short duration.
• B) detect faint echoes as their clicks reflect back from objects.
• C) screen out unrelated loud noises in the sea.
• D) evaluate the time and direction of return sounds.
• E) All of these are correct.

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Definitions:

Naturalistic Observation

A research method involving observing subjects in their natural environment without intervention by the researchers.

Case Studies

Research methods involving the detailed examination of a single example or case.

Surveys

Research methods involving the collection of data from a predefined group of respondents to gain information and insights on various topics of interest.

Experimental Design

The plan for a scientific study, determining how to test hypotheses by specifying and controlling variables.