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 9
Describe how pollution can contribute to extinction.
Describe one way climate change can lead to extinction.
Describe one way habitat destruction can cause extinction.
Describe what is meant by the 'background extinction rate'.
Explain how invasive species can contribute to the extinction of native species.
Explain how overhunting can lead to extinction.
Explain the difference between background extinction and mass extinction.
Explain why biodiversity is important for ecosystems.
Which mass extinction event is associated with the impact of a large asteroid? (1) Ordovician-Silurian (2) Devonian (3) Cretaceous-Paleogene (4) Triassic-Jurassic
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 short period (3) The extinction of plants only (4) The extinction of animals only
Which of the following is a direct result of species extinction? (1) Increased food supply (2) Loss of genetic diversity (3) More stable ecosystems (4) Decreased pollution
Which of the following is a likely cause of the Permian-Triassic mass extinction? (1) Volcanic eruptions (2) Asteroid impact (3) Human activity (4) Overhunting
Fill in the blank: The _______ extinction event is also known as the 'Great Dying'.
Fill in the blank: The _______ extinction event is associated with the rise of mammals.
Fill in the blank: The _______ extinction event is considered the largest mass extinction in Earth's history.
Fill in the blank: The _______ extinction event is known for the disappearance of most marine invertebrates and many fish species.
True or False: All extinctions are caused by natural events.
True or False: All mass extinctions were caused by asteroid impacts.
True or False: Extinction can affect food webs and ecosystem balance.
True or False: Extinction events can lead to the evolution of new species.
