Pouched mammals that have a very short gestation period like the kangaroo, opossums and koala belong to which group?

Pouched mammals that have a very short gestation period like the kangaroo, opossums and koala belong to which group?

• A. Monotremes & Examples
• B. Primates
• C. Marsupials & Examples
• D. Placental mammals

Answer: (C)

The key idea is how some mammals finish most of their development after birth in a pouch. These animals are marsupials, which have a very short gestation and give birth to underdeveloped young that continue growing inside the mother's pouch, attached to a teat. Kangaroos, opossums, and koalas are classic examples, illustrating this pattern of rapid early birth followed by lengthy postnatal development in the pouch. In contrast, monotremes lay eggs, and placental mammals complete most development inside the uterus with longer gestation. So the description fits marsupials.

The key idea is how some mammals finish most of their development after birth in a pouch. These animals are marsupials, which have a very short gestation and give birth to underdeveloped young that continue growing inside the mother's pouch, attached to a teat. Kangaroos, opossums, and koalas are classic examples, illustrating this pattern of rapid early birth followed by lengthy postnatal development in the pouch. In contrast, monotremes lay eggs, and placental mammals complete most development inside the uterus with longer gestation. So the description fits marsupials.