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When all the in individuals of a species have died what is it called?
The death of every member of a species is called extinction. When a large number of different species is dies out at the same time it is called mass extinction.
Disappearance of many species at the same time?
extinction
When doe extinction occur?
Extinction of a single species can occur at any time if said species in hunted excessively, but mass extinction only occurs every 27 to 33 million years.
The death of many species in a short time known as what?
Mass extinction.
What is the a period of time called when many species disappeared?
A major extinction event.
What is a mass extinction?
The extinction of a large number of species within a relatively short period of geological time. Caused by some catastrophic global event or widespread environmental change to which species can not adapt
What term describes development of new species and a mass extinction?
Evolution is the term that describes development of new species and mass extinction. Over time all living thing have evolved.
Whats a gradual change in the characteristics of a species over time is?
Evolution.
What is background extinctions?
A background extinction is the continuous extinction of individual species caused by climate change, disease, loss of habitat, and competitive disadvantages against other species. Background extinctions occur at a slow rate over time, affecting only a few species at one time.
How do scientists know that KT extinction took place?
When we see that there are fossils found in a certain geological layer, which are evidence that a certain species existed at that time, and then in the next geological stratum we no longer find those fossils, and there is no evidence that the species which used to exist still exists, we infer that the species became extinct. If a whole lot of species become extinct at approximately the same time, we call that an extinction event, such as the KT extinction.
What is the large-scale disappearence of many species within a short time called?
Mass extinction
What has occurred when large numbers of species Die over a short period of time?
Mass Extinction
