On Average,a Toddler Sleeps ____ Hours Per Day

question 179

Multiple Choice

On average,a toddler sleeps ____ hours per day.

• A)13-14
• B)12-13
• C)10-11
• D)8-9

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Definitions:

Neural Tube

The hollow, longitudinal structure in the early vertebrate embryo that gives rise to the brain and spinal cord. The neural tube forms from the neural plate, a flattened, thickened region of the ectoderm that rolls up and sinks below the surface.

Neural Plate

The flat layer of embryonic ectodermal cells that develops into the nervous system, including the brain and spinal cord.

Neural Fold

Embryonic structure that folds to form the neural tube, which later develops into the central nervous system in vertebrates.

Thalamus

The part of the vertebrate brain that serves as a main relay center, transmitting information between the spinal cord and the cerebrum.