Understanding Extinction and Species

The video explains extinction, highlighting the difference between gradual and mass extinction events. It discusses how species like dinosaurs became extinct due to an asteroid impact, while others face extinction due to environmental changes and human activities. The video also covers endangered species and suggests ways to help prevent extinction, such as recycling and conservation efforts.

What remains do we have of dinosaurs today?

• Live dinosaurs

• Dinosaur eggs

• Bones or fossils

• Dinosaur skin

What is a species?

• A single organism

• A group of organisms that share common traits and can reproduce

• A group of extinct animals

• A group of organisms that cannot reproduce

What is mass extinction?

• Extinction caused by humans

• Extinction of plants only

• Extinction that happens quickly over a short period

• Extinction that happens slowly over time

Which of the following is NOT a cause of extinction?

• Human activities

• Abundant food supply

• Environmental changes

• New predators

What happened to the dodo bird?

• It was protected by humans

• It migrated to a new habitat

• It became extinct due to non-native species

• It evolved into a new species

Which species is NOT mentioned as endangered?

• Bengal tiger

• Blue whale

• Mountain gorilla

• Giant panda

What is the extinction rate of plants compared to animals?

• Slower than animals

• The same as animals

• Faster than animals

• Plants do not go extinct

What is one way to help prevent animal extinction?

• Ignoring climate change

• Cutting down more trees

• Planting a garden

• Hunting endangered species

What is a species called if it is at risk of extinction?

• Extinct species

• Protected species

• Endangered species

• Common species

Which of the following is a simple action to help prevent extinction?

• Recycling

• Overhunting

• Deforestation

• Polluting water bodies