00 to 01 week: Newborn males are 50 centimeters and 3.5 kilograms {first stage of development}. Fat is under skin. Girls have less muscle mass, greater fat proportion, smaller water proportion, faster development rate, and smaller variation. At birth, males are heavier and longer than females. Males are more susceptible to postnatal and perinatal complications. By bone age, newborn girls are like five-week-old boys.
Biological Sciences>Zoology>Development>Stages>Newborn
4-Zoology-Development-Stages-Newborn
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Date Modified: 2022.0224