Question

place each mammal into the group to which it belongs.

marsupial

monotreme

eutherian

Explanation:

• Marsupials are mammals that have a pouch to carry their young. Koalas are marsupials.
• Monotremes are egg - laying mammals. Platypus is a monotreme.
• Eutherians are placental mammals. Horses are eutherians.

Answer:

• Marsupial: koala
• Monotreme: platypus
• Eutherian: horse