Extinction (GCSE Biology)

Which human activity is a major direct cause of modern extinctions by destroying or fragmenting habitats?

How can invasive non-native species increase the risk of extinction for native species?

Why can small isolated populations on islands be especially vulnerable to extinction?

Which practice by humans is an example of artificial selection that can reduce genetic diversity and potentially increase extinction risk for a domesticated breed?

Which term describes the complete disappearance of all members of a species from Earth?

A sudden large reduction in the size of a population due to an environmental event can reduce genetic variation. What is this event called in evolutionary terms?

Which international list or system is commonly used to classify species by their risk of extinction (e.g., endangered, vulnerable)?

How does reduced population size due to human hunting or collection make extinction more likely?

Which of the following actions by individuals can help reduce the global risk of species extinctions?

Which monitoring measure helps scientists estimate whether a species is at risk of extinction?

How does excessive hunting or over-exploitation of a species contribute to its extinction even when habitat remains available?