What are the 3 groups of mammals?

Answer 1

The three basic mammalian groups are:

Placental - carry their young inside their body; the young develop while attached to a placenta that is in contact with the uterine lining to exchange nutrients and waste.

Marsupial - the young are carried and nourished in a pouch.

Egg layers - or Monotremes; the rarest of the mammalian species: platypi and echidnas fall in this group.

Answer 2

monotremes, marsupials, and placentals.
Monotremes- spiny anteater and duck- billed platypus. Native to Australia, they lay hard eggs and feed from their mother's milk. They are the least evolved and have some traits of reptiles.

Marsupials- Koala bears, kangaroos, tazmanian devils and wallabys. They are born premature and nursed in a pouch. All marsupials except opsssum are from Australia.

Placentals- Are all the rest of the mammals in the world, their offspring develop on the inside of the mother

Answer 3

Monotremes (Lay Eggs)

Marsupials (Pouch)

Eutherians (Placenta)

Answer 4

Three different mammals are Humans, Tigers, and other animals.

Answer 5

Three groups of mammals would be the "equine" (horses), "bovine" (swine), and "ovine" (sheep).

Answer 6

Monotremes, Marsupials, Placentals