Extinction and Mass Extinctions
Biology ⇒ Evolution and Diversity
Extinction and Mass Extinctions starts at 9 and continues till grade 12.
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Describe one way in which human activity contributes to species extinction.
Describe the difference between endangered and extinct species.
Describe the role of climate change in past mass extinctions.
Describe the role of habitat destruction in modern extinctions.
Describe two major differences between background extinction and mass extinction.
Explain how invasive species can contribute to the extinction of native species.
Explain how overhunting by humans can lead to extinction.
Explain how volcanic eruptions can lead to mass extinctions.
Which mass extinction event is associated with a large asteroid impact? (1) Permian-Triassic (2) Cretaceous-Paleogene (3) Devonian (4) Ordovician-Silurian
Which of the following best describes background extinction rate? (1) The rate at which all species go extinct during a mass extinction (2) The normal rate of extinction in Earth's history (3) The rate of extinction caused by humans (4) The rate of extinction due to asteroid impacts
Which of the following is a direct consequence of mass extinction events? (1) Increased biodiversity (2) Loss of ecological niches (3) Decreased speciation (4) Stable climate
Which of the following is a likely result of a mass extinction event? (1) Decreased competition (2) Increased population sizes (3) Decreased mutation rates (4) Immediate ecosystem recovery
Fill in the blank: The _______ extinction event is also known as the Great Dying.
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 Paleozoic and Mesozoic eras.
Fill in the blank: The _______ extinction event occurred about 66 million years ago.
True or False: All extinctions are caused by catastrophic events.
True or False: All mass extinctions are followed by a rapid increase in biodiversity.
True or False: Extinction can lead to the evolution of new species.
True or False: Extinction is a natural part of evolution.
