Placentals, Monotremes and Marsupials

Which of following is a characteristic all mammals share?

• They all have a pouch

• They all lay eggs.

• They all give their young milk.

• They all have thumbs

Which group of mammals gives birth to premature young that continue to develop in their mother's pouch?

• Placentals

• Marsupials

• Monotremes

• Apes

Which groups of mammals (in general) have the longest gestation period?

• Marsupials

• Monotremes

• Placentals

Monotremes are the only group of mammals that ...?

• lay eggs.

• have hair

• feed their young milk.

• have wings.

Most Mammals are

• Monotremes

• Placentals

• Marsupials

There are only two mammals that fall into the group monotremes. What are they?

• Opossums & Possums

• Beavers & Otters

• Platypus & Echidna

• Kangaroos & Wallabies

Which of these animals are marsupials?

• Wallabies

• Possums

• Koala

• Wombats