Cambrian explosion

<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

As we all grow up we tend to believe what we want to believe in. If God gave us a brain to think, would going against the Bible be wrong? We have all heard the complicated question, did God make the earth in six days or did evolution play a major part in the making of earth. Many people in the older days would be judge or even killed to even think this, but as science with factual evidence develope, we are start to fit all the missing pieces together. Although is factual evidence enough to flash

A Short History of Nearly Everything is a popular science book by American author Bill Bryson that explains some areas of science, using a style of language which aims to be more accessible to the general public than many other books dedicated to the subject. It was one of the bestselling popular science books of 2005 in the UK, selling over 300,000 copies.[1] instead describing general sciences such as chemistry, paleontology, astronomy, and particle physics. In it, he explores time from the

A Short History of Nearly Everything is a popular science book by American author Bill Bryson that explains some areas of science, using a style of language which aims to be more accessible to the general public than many other books dedicated to the subject. It was one of the bestselling popular science books of 2005 in the UK, selling over 300,000 copies.[1] instead describing general sciences such as chemistry, paleontology, astronomy, and particle physics. In it, he explores time from the Big

A comparative review of the vascular system in seed plants and humans In the evolutionary tree of life, all biotic organisms are believed to have derived from a common ancestor. The organisms falling under the eukaryotic kingdom of Plantae are known to have arisen in the same time period as those in the eukaryotic kingdom of Animalia—the Paleozoic era, about 500 million years ago (MYA) (Raven et al., 2008). Despite their chronological resemblance, their evolutionary diversity

Life on earth began approximately 3.5 billion years ago and, since the rapid diversification of most major living phyla (known as The Cambrian Explosion), evolution has given rise to an extraordinarily diverse range of life forms. Evolution has resulted in various species with a wide range of traits, each with the potential to be utilized by human-kind. By modifying these organisms through cross-breeding and artificial selection to create crops with desirable traits, the agriculture industry has

The theory of evolution, as set forth by Charles Darwin in 1859, stated that all plant and animal life evolved over long periods of time from simple to more complicated forms through mutation and adaptation. He also taught that only the fittest of each species would survive. He further postulated that the first living cell evolved in a "warm warm little pond" and that it took billions of years for the present diversity of living things to evolve. At the time, it was thought that the few "missing

In science, evolution is one of the basic templates to understand the biology of an organism or ecological unit. Changes in that ecosystem cause adaptations to occur in species, if there is time. With human intervention (pollution, climate change, deforestation, etc.) many species do not have time to adapt, and therefore move to a new environment or become extinct. It is the change in inherited traits of a population through a process called natural selection in which only the strongest traits

Commonly, religious discussion turns to the subject of origins. There are two reasons for this: firstly, there are those with a literal or semi-literal interpretation of the Bible (or other relevant holy book) who remain convinced that the world was created in the recent past looking more or less as it does today. Obviously, this issue must be resolved before the existence or nature of the deity can even begin to be discussed! Secondly, even those with the more common, nonliteral interpretation of

PHYSICS PROJECT TO STUDY THE OPTICAL LENS OF A HUMAN EYE Eyes are organs that detect light, and convert it to electro-chemical impulses in neurons. The simplest photoreceptors in conscious vision connect light to movement. In higher organisms the eye is a complex optical system which collects light from the surrounding environment; regulates its intensity through a diaphragm; focuses it through an adjustable assembly of lenses to form an image; converts this image into a set of electrical signals;