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extinct

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Definition

Extinct means that a species of plant or animal has died out completely. There are no more living members of the species.

Extinction is a natural process that has been happening for millions of years. However, the rate of extinction is currently much higher than it has been in the past. This is due to human activities, such as overhunting, habitat loss, and climate change.

There are many different ways to define extinction. One definition is that a species is extinct when there are no living members of the species left in the wild. Another definition is that a species is extinct when there are no living members of the species left anywhere in the world.

There are a number of different ways to determine whether or not a species is extinct. One way is to look for living members of the species. Another way is to look for evidence of the species, such as fossils or DNA.

Extinction is a serious problem because it reduces biodiversity. Biodiversity is the variety of different life forms on Earth. Biodiversity is important because it helps to keep ecosystems healthy. When a species goes extinct, it can disrupt the balance of an ecosystem.

There are a number of things that can be done to reduce the rate of extinction. One thing is to protect habitats. Another is to reduce overhunting and poaching. And, we can also reduce our impact on climate change.

How can the word be used?

An extinct species is a species that has died out completely.

extinct

Different forms of the word

Noun: extinction, extirpation.

Adjective: extinct, extirpated.

Verb: to extinguish, to extirpate.

Synonyms: vanished, disappeared, lost.

Etymology

The word "extinct" comes from the Latin word extinctus, which means "to quench, to put out." It was first used in English in the 14th century, and it is still used today to refer to a species that has died out completely.

Question

Find out what animals are extinct.

AQA Science Exam Question and Answer

Question:

Explain the concept of extinction and the factors that can lead to the disappearance of a species. Provide examples of human activities that have contributed to the extinction of certain species.

Answer:

Extinction refers to the complete disappearance of a species from the Earth. It occurs when the last individual of that species dies, leaving no viable populations. Several factors can lead to extinction, including natural events like climate change, geological catastrophes, and diseases. However, human activities have significantly accelerated the rate of extinction.

Habitat destruction is a major human-driven factor, as activities such as deforestation, urbanisation, and agriculture reduce or fragment suitable habitats for many species. Overexploitation, where species are excessively hunted or harvested for trade, food, or medicinal purposes, has also led to extinctions. Pollution, the introduction of invasive species, and climate change further exacerbate the threat to various species.

Examples of human-driven extinctions include the passenger pigeon, hunted to extinction in the early 20th century, and the dodo bird, which disappeared due to human-introduced animals and habitat destruction. Understanding the impact of human actions on extinction is crucial for implementing conservation strategies to protect endangered species and preserve biodiversity.