Extinction Of Species Flashcards
(10 cards)
What is extinction?
The permanent loss of a species from Earth.
True or False: Extinction can occur naturally.
True
Fill in the blank: The current rate of extinction is estimated to be _____ times higher than the natural background rate.
1000
What are the primary causes of species extinction?
Habitat destruction, climate change, pollution, overfishing, and invasive species.
Multiple Choice: Which of the following is NOT a direct cause of extinction? A) Habitat loss B) Climate change C) Natural selection D) Pollution
C) Natural selection
What is the term for species that are at risk of extinction in the near future?
Endangered species
True or False: The IUCN Red List is a system that assesses the conservation status of species.
True
What human activity is the most significant driver of extinction?
Deforestation and habitat destruction.
Fill in the blank: The passenger pigeon was declared extinct in the year _____ due to overhunting.
1914
Short answer: Name one successful conservation effort that has helped prevent extinction.
Captive breeding programs.