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.

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Definitions:

Fetal Presentation

The position a fetus is in at the time of delivery, determined by the part of the fetus closest to the birth canal.

Stage 3

A categorization in various models that typically represents a moderate level of development, severity, or progression in a process or disease.

Delivery Placenta

The stage of childbirth where the placenta, the organ that nourished the baby in the womb, is expelled from the uterus after the baby is born.

Umbilical Cord

A flexible cord-like structure containing blood vessels that connect a fetus in the uterus to the placenta, delivering nutrients and removing waste.