Answer to Question #270597 in Zoology for Laizer

Question

importances of mass extinction over time with emphasis permian Triassic extinction. Six points

Answer 1

Permian Triassic extinction, also called Permian extinction or End-Permian extinction is a series of extinction pulses that contributed to the greatest mass extinction in Earth’s history.

It's importances were;

1. The sudden disappearance of plants and animals that occupied a specific habitat created new opportunities for surviving species to enlarge. By removing so many species from their ecosystems in a short period of time, mass extinctions reduce competition for resources and leave behind many vacant niches, which surviving lineages can evolve into.

2. Mass extinctions reduce diversity by killing off specific lineages, and with them, any descendent species they might have given rise to. In this way, mass extinction prunes whole branches off the tree of life.

3. Mass extinction levels the evolutionary playing field for a brief time, allowing lineages that were formerly minor players to diversify and become more prevalent.

4. Mass extinctions enables new organisms to evolve and adapt to the ever changing climate conditions of earth.

5. Mass extinctions especially the Permian extinctions helped drive the evolution of life on earth.

6. Mass extinctions help remove dangerous species from Earth's surface, thereby creating a conducive environment for the new emerging species.