Cyanobacteria

In this lab I examined and drew different samples of slides and then categorized these slides into a logical evolutionary order. The first sample that most likely came first in the evolutionary order is the typical bacteria, which I viewed at a 1000 magnification. These bacteria can be found in the Eubacteria domain and kingdom. The bacteria in my sample were coccus, which means that the bacterium has a round shape, and this type of bacteria is one of the simplest forms of bacteria. These cells…

1.1 INTRODUCTION: BILAL YALCIN (4918678) The biggest threat to civilization and our planet is global warming. The increase in the temperature of the World’s surface both land and water are called Global Warming. Scientists have proven that increase in the temperature caused by C02 emissions caused many major environmental disasters such as melting of the glaciers, sea level rising, deforestation. C02 emissions weakens the ozone layer, furthermore our demand for more cars and petrol, gasoline is…

Module 1 Essay Cells are the smallest, most basic unit of life. Cells are diverse in size and shape and the sheer number of them. Scientists make the distinction that there are two classes of cells: eukaryotic and prokaryotic. Eukaryotic and prokaryotic cells are similar yet very different. But in addition to the eukaryotic and prokaryotic cells, we have viruses—they are not regarded as life in the scientific community, however, they are important because they infect those which have life (i.e…

n.d.-d). It is also home to life forms and minerals that give the water its variety of colors. High silica concentrations in the water give it a milky blue color, while poisonous iron oxides and arsenic compounds give the water red hues, and cyanobacteria add orange color (Utah National Parks,…

present in all photosynthesising autotrophs with the exception of bacteria and it becomes blue green in its pure state. Whereas, Chlorophyll B is an accessory photosynthetic pigment, becomes olive brown in pure state and is not evident in diatoms, cyanobacteria and red and blue bacteria. Chlorophyll is also called photoreceptors which by definition are a structure in a living organism, especially a sensory cell or sense organ that responds to light falling on it. In this instance, the…

Microbial associations with marine invertebrates Marine bacteria can have a large impact on other marine organisms throughout their lifecycle. Marine invertebrates may comprise more than 30% of all animal species and are commonly associated with distinct microbial communities (Otero-Gonzáles et al., 2010). Bacteria, archaea and single-celled eukaryotes may act as larval settlement cues, symbionts or pathogens to a range of marine invertebrate phyla. Bacteria quickly colonize available…

Atmosphere evolution on rocky planets Life on Earth, how is it possible? Why is it only Earth? This is a common question asked by many scientists around the world, and one which we may not find the answer to for a long while yet. It is very interesting to look at our own world, but what makes it so special? What about Mars and Venus? Our two closest neighbours, surely they could or could have held the possibility of life on their surfaces? It is very intriguing that even though these planets…

I decided to do my review on a lecture featuring a man named Dr. Eric Smith. He is a professor that spoke at Santa Fe Institute on April 11 of 2007 about the topic of life. This lecture was sponsored by the Santa Fe Institute and in this lecture Smith covers the main topics of how life started, what it’s is made up of, and if it was inevitable or rare. He begins to talk about how life is the result of physical and chemical processes. Smith then quotes a quote from a man named Steven Gould. “Any…

Introduction The Gram stain is a valuable tool to microbiologists in identifying the cell well composition of prokaryotic species. The underlying process revolves around a series of chemical dyes, and their propensity to bind to peptidoglycan polymers in the cell wall. The results allow scientists to infer properties about the outer coating of an organism and is often the first step in identifying an unknown species. For the purpose of our experiment, the results of the Gram stain will be as…

Prehistoric times have been a mystery for modern humans for centuries. These times span from the formation of the Earth, about 4.5 billion years ago, all the way to the Iron Age, which ended about 3,200 years ago. This paper will be discussing the Precambrian times first, due to it being the oldest period in Earth's history. The next paragraph will talk about the Phanerozoic eon, which contained the first forms of life on Earth. The last paragraph will be about the most recent period, which has…