8-9 months or 10 months
First Stage: The first two weeks after conception are known as the Germinal stage. Second Stage: The next six weeks of development are known as the Embryonic stage. Third Stage: The remainder of prenatal development is known as the Fetal stage.
This stage is reckoned to last for about 100,000 years.
This stage lasts only about two weeks.
1 year.
Prenatal, infancy, childhood, adolescence and adulthood.
FTG
embryonic
embryonic
The sun's red giant stage will last for 1 or 2 billion years.
The embryonic stage, which lasts from fertilization until around 8 weeks, is the most rapid period of prenatal development in humans. This is when the major organs and systems of the body begin to form.
The first period of prenatal development is the germinal stage, which lasts for the first two weeks after conception. During this stage, the fertilized egg, or zygote, undergoes rapid cell division and eventually forms a blastocyst. The blastocyst implants itself into the uterine wall, marking the end of the germinal stage.
how long does the Ulysses butterfly spend in each stage