Geology and Paleontology Worksheet

Front

When did mammals diversify?

Back

Two hypotheses exist (both before and after the Cretaceous)

Front

Who was the first animal to be on land?

Back

Tiktaalik

Front

Who of these is a dinosaur?

Back

Eoraptor

Front

What do fast spreading rates in mid-ocean ridges generate?

Back

Sea level rise, higher CO2, less land is exposed to weathering

Front

What is the current scientific knowledge on the Cambrian explosion?

Back

It gave way to major phyla that exist today

Front

Define the Cambrian explosion.

Back

A significant event in Earth's history approximately 541 million years ago, marked by a rapid increase in the diversity of life forms.

Front

What is the significance of Tiktaalik in evolutionary biology?

Back

Tiktaalik is considered a transitional fossil that shows the evolution of vertebrates from water to land.

Front

What are mid-ocean ridges?

Back

Underwater mountain ranges formed by plate tectonics, where new oceanic crust is created.

Front

Explain the concept of plate tectonics.

Back

A scientific theory that describes the large-scale movement of Earth's lithosphere, which is divided into tectonic plates.

Front

What is a dinosaur?

Back

A diverse group of reptiles that were the dominant terrestrial vertebrates during the Mesozoic era.