Gestation
usually 9 months
That depends on the species you are asking about. Different animals give birth after different periods of gestation.
The female ovaries are generally developed about 100 days after fertilization. The male testis do not descend into the scrotum until the ninth month of development although this sometimes occurs after birth.
development
An embryo is a multicellular diploid eukaryote in its earliest stage of development , from the time of first cell division until birth, hatching, or germination . In humans, it is called an embryo until about eight weeks after fertilization
An embryo is a multicellular diploid eukaryote in its earliest stage of development , from the time of first cell division until birth, hatching, or germination . In humans, it is called an embryo until about eight weeks after fertilization
How long is the embryonic period in humans?
development
development
An embryo is the early developmental stage of an organism after fertilization, typically characterized by the formation of basic organ structures but not yet fully developed. In humans, the embryo stage lasts from fertilization up until about the eighth week of pregnancy. During this time, the embryo undergoes rapid cell division and differentiation.
A seed is a small embryonic plant enclosed in a covering called the seed coat, usually with some stored food . It is the product of the ripened ovule of gymnosperm and angiosperm plants which occurs after fertilization and some growth within the mother plant.An embryo is a multicellular diploid eukaryote in its earliest stage of development , from the time of first cell division until birth, hatching or germination . In humans, it is called an embryo until about eight weeks after fertilization (i.e. ten weeks after the last menstrual period or LMP), and from then it is instead called a fetus .
Fetus (Pronounced 'Feetus')I did the names in bold:Oocyte -> fertilization -> Fertilized Ovum-> cleavage (cell division) -> Morula -> Blastocyst -> attachment to Uterine wall -> Implantation -> Embryoblast -> Embryo -> After the first two months of development, the embryo is called a Fetus until birth