The Figure Represents a Phylogenetic Tree of Birds and Their

question 57

Multiple Choice

The figure represents a phylogenetic tree of birds and their closest relatives. Which group of organisms represents the outgroup in this clade?

• A) lizards and snakes
• B) crocodilians
• C) ornithischian dinosaurs
• D) birds

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Definitions:

Subduction Zone

An area where one tectonic plate is being forced under another, often associated with volcanic activity and earthquakes.

Deep Earthquakes

Seismic events that occur at depths greater than 70 kilometers below the Earth's surface, typically resulting from subduction or other deep crustal activities.

Shallow Earthquakes

Earthquakes that occur at a depth of less than 70 kilometers below the Earth's surface.

Continental Collision

A geological process where two continental plates collide, typically resulting in the formation of mountain ranges.