Question

Which of the following are an extinct species?
A. Dinosaurs
B. Tiger
C. Elephant
D. None of the above

Answer 1

Extinction is the end of a sort of life form or a gathering of sorts, generally a species. The snapshot of extinction is commonly viewed as the demise of the last individual of the species, even though the ability to raise and recuperate may have been lost before this point.

Step by step answer: Extinct species will be species that have ceased to exist. Extinction implies no more people of that species are alive anyplace on the planet. Traveler pigeon, dark delicate shell turtle, Guam kingfisher, dinosaurs are a few instances of extinct species. So, option A Dinosaurs is correct. Endangered species will be species that are at high danger of getting terminated. Tiger and elephant are endangered species. So, options B and C are incorrect.
Hence, the correct answer is Option A
Additional Information: Species is terminated when the last existing part or species dies. Extinction thus turns into a conviction when there are no enduring people that can recreate and make another age. A species may turn out to be practically terminated when just a small bunch of people endure, which can't duplicate because of chronic frailty, age, meager conveyance over an enormous range, an absence of people of both genders (in explicitly replicating species), or different reasons. Pinpointing the extinction (or pseudoextinction) of a species requires an away from that species. Extinction happens when natural variables or developmental issues cause a species to vanish. The vanishing of species from Earth is progressing, and rates have shifted after some time. A fourth of warm-blooded creatures are in danger of extinction, as per IUCN Red List.

Note: In red data book, as per IUCN every species data is mentioned according to its category, and different coloured pages used to represent that, for example, the dodo bird is extinct. In the red data book, the dinosaurs are mentioned on a black colour page as they are already extinct.