internal
they have external fertilization , PS i learned it in science :P zz this is all wrong...it does NOT use exernal fertilization...external fertilazation is for fish and stuf,but internal is for humans and mamals.
internal
External
Fish development can be both internal and external depending on the species. Some fish, like most bony fish, have external fertilization where eggs are fertilized outside the female's body. Others, like some species of sharks, exhibit internal fertilization where fertilization occurs inside the female's body.
The opening at the lower end of the uterus is the internal cervical os. It leads to the cervical canal, through the exernal os, and into the vagina.
Animals that have internal development include mammals, birds, reptiles, and some fish. These animals give birth to fully formed young ones after the internal development process, where the embryo develops inside the mother's body. This allows the young ones to be born in a more advanced state compared to animals with external development.
No, monotremes do not have short internal development.
Online PDF viewers are widely used for viewing documents that have been sent by email. You can also highlight text and add hyperlinks for internal or exernal text.
they have external fertilization , PS i learned it in science :P zz this is all wrong...it does NOT use exernal fertilization...external fertilazation is for fish and stuf,but internal is for humans and mamals.
internal
is the process of every thng
Cheetahs are placental mammals, so they have internal fertilization and internal development within the uterus of the female.