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.

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.