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After reading the paragraphs below, answer the questions that follow.
Bats and marine mammals are well-known examples of animals that produce high-frequency sound waves beyond the range of human hearing. The high-frequency waves are used for echolocation, the process of emitting high-frequency sound waves and using both the time it takes for the waves to bounce back to the caller and the direction from which the waves return to the caller to locate distant objects. Research has shown that bats can send and receive sounds as high as 100,000 Hertz (Hz) .
On the other hand, several mammals, such as elephants and whales, produce extremely low-frequency sounds. Elephant calls range from 5 to 50 Hz. Low-frequency sounds have long wavelengths, which means they are less likely to be distorted or interrupted by features in the environment. In favorable weather conditions, low-frequency sound waves can be transmitted over several kilometers.
-What advantage does the extended hearing range of elephants provide?
State Board Of Nursing
A regulatory agency in each state responsible for the licensure and discipline of nurses, ensuring the practice of nursing meets the established standards for safety and competency.
Social Policy Statement
An official outline of principles and interventions aimed at addressing societal issues and promoting welfare.
American Nurses' Association
A professional organization representing the interests of the nation's registered nurses, providing a framework for nursing standards and policies.
Gallup Poll
A survey-based research method used to collect data on public opinion and behavior, conducted by the Gallup organization.
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