Extinction and Mass Extinctions

Biology ⇒ Evolution and Diversity

Extinction and Mass Extinctions starts at 9 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Extinction and Mass Extinctions. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.

See sample questions for grade 10

Describe how overhunting can lead to extinction.

Describe one way climate change can lead to extinction.

Describe one way pollution can contribute to extinction.

Describe the role of natural selection in the survival of species after a mass extinction event.

Explain how habitat fragmentation can lead to extinction.

Explain how invasive species can contribute to the extinction of native species.

Explain the difference between local extinction and global extinction.

Explain why biodiversity is important for ecosystem stability.

How many major mass extinction events have occurred in Earth's history? (1) 2 (2) 3 (3) 5 (4) 10

Which mass extinction event is associated with the end of the Paleozoic Era? (1) Ordovician-Silurian (2) Permian-Triassic (3) Triassic-Jurassic (4) Cretaceous-Paleogene

Which of the following best defines background extinction rate? (1) The rate of extinction during mass extinction events (2) The normal rate of extinction in Earth's history (3) The rate at which humans cause extinction (4) The rate of extinction in marine species only

Which of the following best describes a mass extinction? (1) The extinction of a single species (2) The extinction of a large number of species in a relatively short period (3) The extinction of plants only (4) The extinction of animals only

Fill in the blank: The _______ extinction event is believed to have been caused by massive volcanic eruptions and climate change.

Fill in the blank: The _______ extinction event is known for wiping out the dinosaurs.

Fill in the blank: The _______ extinction event marks the boundary between the Mesozoic and Cenozoic eras.

Fill in the blank: The _______ extinction event occurred about 252 million years ago and is also called the 'Great Dying.'

True or False: All extinctions are caused by human activities.

True or False: All species that go extinct are replaced by new species immediately.

True or False: Extinction can only occur due to natural causes.

True or False: Extinction is a natural part of evolution.