How Does Continental Drift Explain the Uniqueness of Australian Fauna

question 29

Multiple Choice

How does continental drift explain the uniqueness of Australian fauna?

• A) Marsupials fill the ecological niche as eutherians on other continents.
• B) Fossil evidence suggests that marsupials originated in Asia and reached Australia via South America.
• C) The subsequent separation of the southern continents formed an island of marsupials.
• D) In Australia, marsupials diversified, and eutherians became extinct.

---

Definitions:

Rabies

An acute viral disease of the nervous system of warm-blooded animals; usually transmitted by the bite of a rabid animal.

Depressed Fracture

A type of bone fracture where part of the bone is pushed inward, often seen in skull fractures.

Greenstick Fracture

An incomplete fracture, occurring in children.

Open Fracture

A type of bone fracture where the broken bone penetrates through the skin, creating an open wound and increasing infection risk.