Cambrian explosion

truly reflects the how organisms may have changed over our long period of time on Earth. Deuterostomes are unique in their embryonic development when compared to Protostomes and it is suggested that these two groups split at the time of the Cambrian explosion, a brief time in history that blossomed into the vast array of organisms found today. Eventually, the phylum Echinodermata developed and under it, a set of classes arose. Archinidea was one of these classes, and later became commonly known as

Genetics/Reproduction Because of the environment an anglerfish lives in the male is always looking for a mate. Male anglerfish are always smaller than female anglerfish. They have evolved to be parasitic as they attach to the female anglerfish for nutrition. The reproduction process of anglerfish, is an interesting example of sexual dysmorphism. A male anglerfish bites into the female anglerfish with its teeth and attaches to the female. As the male’s mouth and the female’s skin weld the male loses

Darwin’s theory of evolution was a ground-breaking discovery for the study of life. Although Darwin gets most of the credit for the discovery his influences Charles Lyell, the father of geology and Erasmus Darwin, a pre-Darwinian evolutionist, made great contributions to the theory. The majority of the scientific community was quite receptive to Darwin’s evolution by natural selection theory because it provided an explanation for many things that the current origin of life theory, special creation

the millions of fossils dated to be thousands, hundreds of thousands, millions and billions of years old; this theory seems solid. According to an article, by bio technician Brian Thomas (2011), a discrepancy about a time period known as the Cambrian explosion; dated to be about 800 million years ago, has been around as early as Charles Darwin. In this article he presents the evidence that an abundance of species said not to appear until

formed. It was made up of present day Siberia, Europe, and North America.Finally all of the continents joined together to create Pangea. 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

used for extracting arthropods, an invertebrate animal having an exoskeleton, a segmented body, and jointed appendages (Bio 2 Book, page 684), from soil and litter samples. The earliest fossils with this particular body structure are from the Cambrian explosion (525-535 million years ago), indicating that the arthropods are at least this old. Berlese Funnels work on the principle of insects and other arthropods that normally live in soil and litter will respond negatively to light. Therefore, a light

Origin of Species. In spite of this, he still believed in the theory of evolution. In this article, Dr. Trevor D. Lamb claimed that the human eye evolved to be what it is now in less than 100 million years. Two types of eyes formed during the Cambrian explosion, compound and camera-style. Compound eyes are found in all insects and arthropods, while camera-style eyes are usually found in vertebrates. The author and his colleagues believe that all jawed vertebrates share the same ancestor since their

Asia Mr.Cowart 5th pd. 2/3/16 Compare / Contrast the evolution of Aquatic Organism to Terrestrial Organism. -what did fish evolve from? What were the different stages of their evolution? What makes an animal aquatic is if it is a vertebrate or an invertebrate. They live in water for the MAJORITY of their life, it could breathe air or extract oxygen through its habitat in the water through their special adaptations such as gills or through its skin. A Terrestrial Organism is basically the total

Precambrian Era The Precambrian era laster 4600-541 million years ago. During this time, there were no plant life on the planet. Most of the things that were on the planet were rocks. The most common type of rock was Isua greenstone. Most rocks have been eroded away, subducted, or metamorphosed. During this time, the atmospheres and oceans were formed, plate tectonics began to build up continental masses. The air during this time was mostly made up of water vapor, carbon dioxide, and nitrogen.

Evolution and man-made climate change are both controversial issues, and it is very important to know what is the problem and controversy inside these theories. The former concern so many research about biology, including those published in the honor journal such as Science and Nature, and the controversy might cause these honored research just a joke. The latter is the key to tell us whether the weird climate is cause by we human beings or not. Should we change our behavior and industrial to help