Nine Months After Conception, a Newborn Has About _____ Billion

question 56

Multiple Choice

Nine months after conception, a newborn has about _____ billion cells.

• A) 5
• B) 26
• C) 55
• D) 80

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Definitions:

Endolymph

A fluid within the inner ear that plays a key role in hearing and balance, found within the labyrinth.

Olfactory Adaptation

The temporary, normal inability to distinguish a particular odor after a prolonged exposure to that airborne compound.

Odorant Receptors

Specialized protein molecules located in the nasal cavity that detect and respond to chemical compounds in the air, contributing to the sense of smell.

Membranous Labyrinth

A network of fluid-filled passages and cavities within the inner ear, instrumental in the sense of balance and hearing.