No, it is a called a marsupium.
The purpose of the marsupium is to protect the joey until it is old enough to live independently of its mother.
The amniote egg allowed amphibians to place their eggs on dry land instead of in water. The water, amniotic fluid, was in the egg.
No. As they are marsupials, kangaroos give birth to live young.
they have babies called Joeys.
Reptiles, mammals, and birds lay amniotic eggs, which contain a yolk to nourish the developing organism. Eggs are used to protect the organism as it develops, and the egg also aids in gas and energy exchange.
Kangaroos are mammals, and marsupials, which means they are not born from eggs. The young emerge from the birth canal and crawl up to the pouch where they continue their development. The only mammals hatched from eggs are monotremes, which include just platypuses and echidnas.
No, the young are born, but then crawl into a pouch where they continue developing.
No, frogs are not amniotes. Amniotes are a group of vertebrates that possess extraembryonic membranes, such as reptiles, birds, and mammals. Frogs belong to a different group of vertebrates called amphibians, which do not have these extraembryonic membranes.
An amniote is any of a variety of types of vertebrate which have an amnion - the sac in which an embryo is suspended - this includes mammals, birds, and reptiles.
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An anamniote is any animal which is not an amniote.
Kangaroos do not lay eggs. They are marsupials, not monotremes, and therefore are not egg-laying mammals like platypuses and echidnas. Their offspring are born live.
The cast of The Amniote - 2009 includes: Chad Brummett Courtney Cunningham as C.C. Emily Villela as Stephanie