NSES Content Standard C  Life Science: Life cycles of organisms   Grades K-4, page 129   Plants and animals have life cycles that include being born, developing into adults, reproducing, and eventually dying. The details of this life cycle are different for different organisms.

 
Benchmark 6B The Human Organism: Human Development
Grades K-2, page 132
A human baby grows inside its mother until its birth. Even after birth, a human baby is unable to care for itself, and its survival depends on the care it receives from adults.

Benchmark 6B The Human Organism: Human Development
Grades 3-5, page 132
It takes about 9 months for a human embryo to develop. Embryos are nourished by the mother, so substances she takes in will affect how well or poorly the baby develops.

Benchmark 6B The Human Organism: Human Development
Grades 3-5, page 132
Human beings live longer than most other animals, but all living things die.

Benchmark 6B The Human Organism: Human Development
Grades 3-5, page 132
There is a usual sequence of physical and mental development among human beings, although individuals differ in exactly when they learn things.