It depends on the creature in question.
It takes about 74 days for a sperm to fully develop in the human body.
The first body system to develop in an unborn baby is the nervous system.
It typically takes about 2-3 days for a tan to develop after sun exposure.
The time it takes for a tumor to form and develop in the human body can vary greatly depending on the type of tumor and individual factors. In general, it can take several years for a tumor to develop and grow to a size where it can be detected. However, some tumors can grow more rapidly, while others may take longer to develop. Regular screenings and early detection can help in identifying tumors at an early stage.
An embryo typically takes about 8 weeks to develop into a fetus. This period marks the end of the embryonic stage and the beginning of the fetal stage in human development.
A baby tiger takes about 3 to 3 and 1/2 months to develop.
A baby will take about nine months to develop inside a woman.
i think,9 months.
about 650 days
36 -40 weeks
22 months.
Humans need about 9 months to develop before being born
A pregnancy is 9 months for humans.
A cow's gestation period is about nine months (279 days long).
The gestation period of mice is around 20 days.
The gestation period of mice is around 20 days.
Baby rats first open their eyes at two weeks.