Isolation from the mainland.
Genesis,where things were made, he was a closet christian,cause of his dad
Most animals found today are evolved forms of past species. For example, modern man has only existed for about 12 thousand years. However, recent discoveries have traced back human ancestry as far as some of the first organisms to ever exist, ancient fish-like beings. Through many, many millions of years, animals can evolve to become very different things. Here's another one: the closest living relative to the mighty Tyrannosaurus Rex? Domestic chickens.
When an environment is disturbed, changes are seen in more sensitive organisms before the effect become apparent in less sensitive species. These organisms, usually plants or microorganisms, are called indicator species or bio-indicators.
If the species is prevented from producing fertile offspring - the species will eventually become extinct.
Many species become classified as endangered species when they are dying out.
jj
The origin of new species. To be considered a member of a singe species, organisms must be capable of reproducing and producing viable offspring. Once they have evolved to become reproductively isolated, they can no longer fulfill these requirements and are considered separate species.
The fossil record shows that different species have evolved over time. The fossil record also provides evidence of how a specific organism evolved from earlier species. The fossil record shows that organisms have become more complex over time. It also shows which organisms lived during the same time period, which have a common ancestor, and which have become extinct.
No, Darwin believes that land animals traveled to the Galapagos Islands and adapted to the islands in different ways, causing them to become a different species.
Genesis,where things were made, he was a closet christian,cause of his dad
Extinct (Extinction)
The species probably evolved under similar circumstances and they become more similar as a result. Additionally, they can become more competitive with one another.
Few organisms have become extinct. Few organisms are rare species.
Yes. There have been several episodes of mass extinction. The worst was at the end of the Paleozoic era. The most famous came at the end of the Mesozoic, when the dinosaurs disappeared. Nature is cruel. Of course, some people say that species have not really become extinct, but merely evolved into different forms.
As they live the organisms comprising a species will age and die, they therefore need to reproduce (have babies) in order to replace the members of the species that die or the species will cease to exist (become extinct).
Humans will either have become extinct or evolved into another species well before Sol implodes.
They produce offspring so that organisms species doesn't become extinct!