internal fertilization
Most fish have external fertilization. External fitilization is when the outside of a female body.
In vivo fertilization
Nuclear Fusion
Foxes, like other mammals, undergo internal fertilization. This means that the male fox transfers sperm to the female during mating, leading to fertilization occurring inside her body. After a gestation period of about 53 days, the female gives birth to a litter of kits. This reproductive strategy is typical among mammals, allowing for greater protection of the developing embryos.
Zebrafish exhibit external fertilization, where the female releases eggs and the male fertilizes them outside of the body. The embryos develop externally, with the early stages of development taking place outside of the mother's body in the water.
Fertilization is occurred when ripe pollen from an anther of the same kind of flower catches on the stigma, each pollen grain sends out a tiny threadlike tube. The tube grows down through the style and pierces one of the ovules in the ovary. This process is called fertilization.
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botflies lay their eggs in humans which then hatch inside the human body.
Iknow
external
i think cholera is a disease caused by micro organisms entering the body.
Fixed Joints