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:

Iliac Crest

The upper curved edge of the ilium, one of the bones forming the pelvis, often used as a landmark for medical procedures.

Ischial Tuberosity

The bony protrusion at the bottom of the pelvis on which one sits.

Gluteus Maximus

The largest muscle in the buttocks, involved in movement of the hip and thigh.

Vertebral Column

The vertebral column, or spine, is a series of interconnected bones that protect the spinal cord and provide structural support to the body.