Fossils: Evidence for Evolution and Extinction

The video explores the theory of evolution by natural selection, proposed by Charles Darwin, and supported by evidence such as the fossil record and antibiotic resistance. It explains how fossils form through various processes and their role in understanding evolution. The fossil record, though incomplete, provides insights into the changes in organisms over time. The video also discusses extinction, highlighting factors like environmental changes, new predators, diseases, and competition that contribute to species extinction.

Who proposed the widely accepted theory of evolution by natural selection?

• Albert Einstein

• Isaac Newton

• Charles Darwin

• Gregor Mendel

Which of the following is NOT a way fossils can be formed?

• Preservation in amber

• Preserved traces

• Mineral replacement

• Photosynthesis

What type of fossil is formed when parts of organisms are replaced by minerals?

• Amber fossils

• Mineralized fossils

• Ice fossils

• Trace fossils

Why is the fossil record considered incomplete?

• All fossils have been found

• Early life forms were often soft-bodied

• Fossils are only found in deserts

• Fossils are indestructible

What is one reason scientists cannot be certain about how life began on Earth?

• Fossilization requires specific conditions

• All fossils have been destroyed

• Fossils are only found in one location

• Life began in the ocean

Which of the following is a factor that can lead to extinction?

• Stable climate

• Introduction of new predators

• Abundant food supply

• Lack of competition

What is an example of a catastrophic event that could cause extinction?

• A mild winter

• A volcanic eruption

• A new species evolving

• A new plant species growing