E.8.7.1 - E.8.7.4 Pre-Test

Front

What is the significance of the fossil record in understanding evolutionary changes?

Back

The fossil record provides evidence of how species have changed over time, showing patterns of evolution and extinction.

Front

What does it mean when we say that a species has gone extinct?

Back

Extinction refers to the complete disappearance of a species from Earth, often due to environmental changes or loss of habitat.

Front

How do changes in climate affect species survival?

Back

Changes in climate can alter habitats, food sources, and breeding patterns, leading to the survival or extinction of species.

Front

What is metamorphic rock and how does it form?

Back

Metamorphic rock is formed from existing rock types (igneous, sedimentary, or other metamorphic rocks) through heat, pressure, or chemically active fluids.

Front

What is the Paleozoic Era?

Back

The Paleozoic Era is a geological time period that lasted from about 541 to 252 million years ago, known for the emergence of many marine and terrestrial species.

Front

What is the Mesozoic Era?

Back

The Mesozoic Era, known as the age of reptiles, lasted from about 252 to 66 million years ago and is marked by the dominance of dinosaurs.

Front

What are index fossils and why are they important?

Back

Index fossils are fossils of organisms that were widespread but only existed for a short period, helping to date and correlate the age of rock layers.

Front

What is the process of sedimentation?

Back

Sedimentation is the process by which particles settle out of a fluid, forming layers of sediment that can eventually become sedimentary rock.

Front

What role does pressure play in the formation of metamorphic rocks?

Back

Pressure from overlying materials or tectonic forces can cause changes in mineral structure and composition, leading to the formation of metamorphic rocks.

Front

What is the difference between igneous, sedimentary, and metamorphic rocks?

Back

Igneous rocks form from cooled magma or lava, sedimentary rocks form from accumulated sediments, and metamorphic rocks form from existing rocks under heat and pressure.