Nathaniel Is an Infant Who Has Been Exclusively Breast-Fed from Birth.At

question 19

Multiple Choice

Nathaniel is an infant who has been exclusively breast-fed from birth.At what age would you expect that Nathaniel will first show a preference for the scent of a T-shirt or a brassiere worn by his mother?

• A)less than 24 hours after birth
• B)between 1 and 2 weeks of age
• C)about 1 month of age
• D)3 to 4 months of age

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Definitions:

Transitional Epithelium

A type of epithelial tissue that can stretch and contract, found lining organs that need to accommodate fluctuating volumes of fluid, such as the bladder.

Neuroectoderm

The embryonic portion that develops into the nervous system and skin.

Mesoderm

In the early development phase of an embryo, the central layer that is the precursor to the formation of the muscular system, skeletal structure, and circulatory network.

Endoderm

The deepest layer of tissue or cells in an embryo during its initial stages of development, responsible for forming the digestive and respiratory system linings.