What is the difference between extinct and extirpated?
Extinct is when an organism is no longer found anywhere in the world. Extirpated means that an organism is no longer found in a specific area it once lived, but it is found elsewhere in the world.
What are the biggest effect humans have on the environment and other organisms?
Humans play the biggest role in habitat destruction because of their increasing expansion into wildlife.
What are the four requirements for an organism to undergo natural selection?
In order for natural selection to occur, there must be variation in traits present, inheritance of these traits from previous generations, a differential in survival and reproductive rates, and also high population growth.