7 Questions
What percentage of all gymnosperm species currently face the threat of extinction?
31%
What is one key difference between the 'Sixth Extinction' and previous episodes of mass extinction?
Extinction causes
Which group of species is stated to be more vulnerable to extinction in the text?
Amphibians
What does the text suggest regarding the history of species extinctions on Earth?
Mass extinctions have occurred in the past
How many episodes of mass extinction of species have occurred since the origin and diversification of life on Earth?
5
What is the estimated rate at which current species extinctions are occurring compared to pre-human times?
100 to 1,000 times faster
What is the main cause of the increased rate of species extinctions in the 'Sixth Extinction'?
Human activities
Explore important hypotheses proposed by ecologists and evolutionary biologists related to speciation and species diversification, focusing on the differences between tropical and temperate environments.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
