Elephants Hear Sounds That Are Too Low for Humans to Hear

question 61

Multiple Choice

Elephants hear sounds that are too low for humans to hear. This sensitivity is primarily due to the differences in the ________.

• A) arrangement and shape of the ossicles
• B) flexibility of the basilar membrane in the cochlea
• C) size and flexibility of the tympanic membrane (eardrum)
• D) size and shape of the outer ear

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Definitions:

Genetic Influences

The contribution of genes to the development of traits and behaviors in organisms, including humans.

Monozygotic Twins

Twins who originate from a single fertilized egg, therefore sharing identical genetic material.

Dizygotic Twins

Also known as fraternal twins, they are siblings born at the same time but have developed from two different eggs fertilized by two different sperm.

Self-Esteem

Evaluation of one’s self-concept, usually measured in terms of a relatively stable and global assessment of how a person feels about himself or herself.