Mass extinction

Introduction

Extinction caused by animal or plant, being unable to adapt to changing circumstances. In some cases, scientists have identified the problems that led to the loss of a species. Most often, the disappearance of a complex interaction between many problems like dinosaurs (Rohde 209).

The extinction process in which a group of organisms (species) are dying. If the birth rate is less than the rate for a long time, the extinction of the results. The extinction of the natural result of evolution. Species die out when they are unable to adapt to changes in the environment or to compete effectively with other organisms.

Analysis

More than 99 percent of species that have ever lived have died out. Most biologists' countries believe that "mass extinction" plants and animals, which pose a serious threat to people in the next century, but most Americans only vaguely aware of this problem, said the survey.

Rapid species extinction has been rated as one of the major environmental concerns of the world, ahead of pollution, global warming and the depletion of the ozone layer, according to a survey of 400 scientists commissioned by American New York Museum of natural history.

Yesterday's poll release comes on the heels of innovative study of plant diversity, which concluded, than at least one of the eight known plant species are threatened with extinction. While scientists disagree on certain numbers, many believe that losing more than ever in history (Raup 833).

Environmental factor

"The rate at which species are much faster than what we saw in the past — including [extinction] associated with Meteor collision," said Daniel Simberloff, University of Tennessee ecologist and major specialist in the field of biodiversity, to participate in a survey of the Museum. [Note: the last mass extinction caused by Meteor collision was that of the dinosaurs 65 million years ago. (Benton ...