Cambrian Explosion

nourishment and food the species cannot reproduce and expand their species further. Reproduction is vital

This occurs when a species is separated and mate with a different species, changing their genetic composition, if then the two species were to be brought back together and mate again, it would cause what is called ‘gene migration’. This process gives so many different variations among the species, which allows more and more variation and population. This process also explains endangered species and extinction.

One of the biggest pieces of evidence for the Flood is the Cambrian explosion. The Cambrian explosion is taught by evolutionist to be a sudden burst of evolution caused by an increase in favorable environments. An evolutionist article states, “Fossils provide solid evidence that organisms from the past are not the same as those found today; they show a progression of evolution… The resulting fossil record tells the story of the past and shows the evolution of form over millions of years. For example, scientists have recovered highly-detailed records showing the evolution of humans and horses.” (Evidence of Evolution, n.d.) In reality the fossil record shows that there was a sudden and nearly simultaneous appearance of all known phyla as well as species from the most distant parts of the family tree during the Cambrian period, instead of a gradual evolution. (Wieland, n.d.) (Wise, 2009) Fossils have been found worldwide in Precambrian rocks, but they were too bizarre and different

The author and his colleagues specifically chose to focus on 375 million year old rocks in their search for fossils because this was the time frame that provided fish that would be useful to study from. The 385 million year old rocks provided fish that look too similar to the ones we have now and the 365 million year old rocks have fossils that don’t resemble fish. The 375 million year old rocks, however, provide fossils that show the transition between fish and land living animals.

During the Cambrian Period there was an explosion of life forms. Most of these were in the water. Many animals with no backbones lived in the shallow seas. These animals were invertebrates.

Major Biological Event: Life evolved and diversified greatly during this Era, in an event called the Cambrian Explosion. Plants began to grow on the land and jawed fish began to appear. The first forests made of small trees and bushes forms, populated by insects, reptiles, amphibians. However, this Era ended with a max extinction in which 96% of the populus went extinct.

In its basic form, the theory of evolution has been confirmed so completely that most modern biologists consider evolution simply a fact (Mayr 1982). It states that environmental factors such as climate, disease, competition from other organisms, and availability of certain types of food will lead to the preferential survival and reproduction of

Could not explain the Cambrian explosion, all life forms appeared or disappeared, completely formed totally devoid of transitions.

<b>Introduction</b><br>Think of a world which existed 290 million years ago. As you look out over the terane in front of you, you think that you are on an alien planet. You see volcanoes spewing ash and lava. Beside them is the ocean which is swarming with many different species of echinoderms, bryozoans and brachiopods. As you look down onto the sea floor you are amazed at the countless number of starfish and urchins. Some animals leave you can't even describe and you have no idea even what phylum they belong to. This is a world at its height in diversity of oceanic species. Millions of wonderous species existed at this time in the ocean and most of them will never appear again in earth's history. In the geologic time scale, a million

The Darwinian revolution marked a paradigm shift in science from which we have realized that it is possible there is an entirely different explanation for evolution than Paley initially asserted. Rather than the Paley’s dichotomy in which organisms were suited to their environments due to either random natural occurrences or intervention by a designer, Darwin pushed that there was a single explanation for why animals seem so perfectly fitted to their environments; survival of the fittest. The Darwinian revolution mostly supports Kuhn’s claim that the choice between paradigms cannot be made by either observation or logic. Paley argued passionately for design by God. Paley asserts that the organs and characteristics of organisms, as well as the fit of organisms to their environments are perfect.

The Permian-Triassic boundary, at the start of the Mesozoic, is defined relative to a particular section of sediment in Meishan, China, where a type of extinct, eel-like creature known as a conodont first appeared, according to the International commission on stratigraphy. Life and climate The Mesozoic Era he Mesozoic Era began roughly around the time of the end-Permian extinction, which wiped out 96 percent of marine life and 70 percent of all terrestrial species on the planet. Life slowly rebounded, eventually giving way to a flourishing diversity of animals, from massive lizards to monstrous dinosaurs.

“If no such variations exist, the population rapidly goes extinct because it cannot adapt to a changing environment” (O’Neil, 1998-2013). Scientists call this reproductive success. “Within a specific environment context, one genotype will be better than another genotype in survival or reproduction for certain reasons having to do with the way its particular features relate to the environment or relate to other organisms within the population” (Futuyma, 2000-2014). The theory of evolution is explicable through various kinds of scientific research.

In her article titled “Fossil Discoveries Challenge Ideas About Earth’s Start,” Rebecca Boyle describes a variety of fossils that have led scientists to consider that life on Earth has existed longer than previously believed. An example of such fossils would be those presented in a deposit known as the Apex Chert, found by paleobiologist William Schopf in the Pilbara Craton in northwestern Australia. The orange rocks of the Apex Chert are inundated with microscopic tubes, which suggest that some kind of life form was able to burrow through the rock. According to University of Wisconsin geochemist John Valley, this sample of fossil life dates back to roughly 3.5 billion years ago, which is a long time before viable life forms were once thought to exist on Earth.

There is another side to the biodiversity of the evolutionary field, as the population weakens the species start the inbreeding of smaller populations, thus playing a role in the extinction of a species. Inbreeding is reproduction among members of a species that are genetically similar. The genetic inbreeding is designed to bolster populations of species whose numbers are in decline. However, when only a few species or varieties of a species are cultivated or survive, the genetic diversity of the organism declines, and population is more vulnerable to being wiped out by new diseases or climate changes because of the inbreeding (Alters, 2000).

Jurassic is a period of time with Dinosaurs, rodents and birds. There were also island seas consisting of sharks, sea monsters and blood-red planktons. The existing plants in that period were cycads, ferns and conifers. The Mesozoic era was about 245 million years ago to 65 years ago, so it almost lasted about 180 years in total. The Mesozoic era is divided into three periods of Triassic, Jurassic and Cretaceous. Mesozoic era means middle animals and it is the era, which the word’s fauna has changed from what is in the Paleozoic era and the most famous organisms of this era are dinosaurs. In the Mesozoic era, the extinction of more than 90 percent of species in the earth was observed and the reason behind it was mostly volcanic eruptions and climate changes. On the other hand, this era had massive changes that represented ecological niches and rise to new creatures such as rodent-size mammals and first dinosaurs. In Triassic, which was the first period of Mesozoic, the mammals and first dinosaurs existed. Later than that, the second period was Jurassic, which giant shaped dinosaurs and other kinds of dinosaurs were developed. Besides that the first flowering plants and primitive birds, with long teeth appeared in that era as well.