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Long bones develop from several bony centers--one for the shaft and at least one for each end. The e
Milestones of Gross Motor Development in Infancy Age ranges provided are for 90% of American infant
Two language centers of the brain
One target for expanding medical services involves vaccinations. Only 78 percent of children ages 19 ...
Early cities were small economic centers surrounded by walls to keep out enemies. These cities had ...
Ecosystem goods and services and monetary values