an animal or pl;ant that no longer exists on earth is said to be.?

Answer 1

Extinguished

Answer 2

Extinct

From Wikipedia:
In biology and ecology, extinction is the ceasing of existence of a species or group of taxa. The moment of extinction is generally considered to be the death of the last individual of that species. Extinction is usually a natural phenomenon; it is estimated that more than 99.9% of all species that have ever lived are now extinct. [1] Through evolution, new species are created by speciation — where new organisms arise and thrive when they are able to find and exploit an ecological niche — and species become extinct when they are no longer able to survive in changing conditions or against superior competition. A typical species becomes extinct within 10 million years of its first appearance, although some species survive virtually unchanged for hundreds of millions of years.

Answer 3

Extinct

Answer 4

Extinct

Answer 5

Extinct

Answer 6

Extinct species

Answer 7

Extinct

You can visit a zoo and see endangered animals that are being saved from extinction and watch the discovery channel and read books on this topic. It is so sad, but true.

Answer 8

Extinct?!?

Answer 9

Gone bye bye for ever, or Extinct

Answer 10

Gone, but not forgotten. That damn Shrub. He is responsible for killing off of the dinosaurs. I know for a fact that 65,000,000 years ago he set off a nuclear weapon that re-directed a harmless chuck of rock into our planet and murdered all of those sweet, innocent creatures, especially the meat-eaters.