living organisms can still be found throughout the Antarctic. These living organisms are able to survive as they have adapted themselves to suit the conditions. The adaptations of the Weddell Seal‚ the Antarctic Lichen‚ and a micro-organism called cyanobacteria will be discussed in this essay. These organisms have all adapted to the same conditions but in different ways. The Weddell Seal‚ Leptonychotes Weddellii‚ is a mammal mainly found on the shore-fast ice around the Antarctic (Testa and Siniff‚ 1987)
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Microcystis is a genus of freshwater cyanobacteria‚ including 22 main European and tropical morphospecies such as Microcystis aeruginosa‚ flos-aquae‚ and wesenbergii (Komárek and Komárková‚ 2002). Microcystis is a unicellular colony-forming genus. Because Microcystis cells contain gas vesicles‚ they are buoyant‚ which allows for the formation of surface scums. These high density surface scums are associated with a plethora of negative environmental consequences‚ including production of the hepatotoxin
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beginning there was only anaerobic atmosphere then it became aerobic. Q:If there was a sudden drop in temperature after the evolution of the first living cells‚ predict how that might have affected the changes in the atmosphere and the evolution of Cyanobacteria and other autotrophs. Explain your answer My prediction would have to include the data from the graph. The question doesn’t exactly include any temperature so I can base my hypothesis on so I conclude that if the temperature suddenly dropped
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endosymbiotic relationship (Starr et al‚ 2009). Life on earth was probably not likely without the presence of photosynthetic organisms‚ namely the characteristic prokaryotic cyanobacteria which is a simple photosynthetic prokaryote which has existed on earth since the prehistoric eras. Trager explains that it is believed that the cyanobacteria formed an endosymbiotic relationship with a eukaryotic plant cell‚ essentially allowing an early eukaryotic cell to possess a
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The Effects of Motor Oil in A Controlled Freshwater Jar Ecosystem Introduction: “An ecosystem is an environment where plants‚ animals‚ and micro-organisms all interact and reside together in a setting” (Simon‚ Reece‚ and Dickey‚ 2010). There are two main types of aquatic ecosystems‚ freshwater and marine. The main difference between them is that marine ecosystems contain salt‚ which causes them to be undrinkable without substantial alterations. Freshwater systems contain nearly no
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further differentiated into chlorophyllous (cyanobacteria) and achlorophyllous. Based on Gram staining Gram negative Escherichia coli Rhizobium Spirillum Pseudomonas Nostoc - cyanobacteria Oscillatoria - cyanobacteria Gram positive Staphylococcus aureus Streptococcus Bacillus Nostoc: akinete - a resting cell of cyanobacteria heterocyst - specialized nitrogen-fixing cells formed during nitrogen starvation by some filamentous cyanobacteria Exercise 10: The Algae Algae have at least
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Kindom plantae * Rose A rose is a woody perennial of the genus Rosa‚ within the family Rosaceae. There are over 100 species. They form a group of plants that can be erect shrubs‚ climbing or trailing with stems that are often armed with sharp prickles. Flowers vary in size and shape and are usually large and showy‚ in colours ranging from white through yellows and reds. Most species are native to Asia‚ with smaller numbers native to Europe‚ North America‚ and northwest Africa. Species‚ cultivars
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One method would be the use of temperature gradients. Another approach would be a change in color such as those demonstrated in the cyanobacteria of Grand Prismatic Spring. Fossils and stromatolite type remains would be strong indicators of the existence living organisms at some point in time. Finally‚ terracing such as that demonstrated by the cyanobacteria could imply the existence of living organisms. 1. Janiskee‚ Bob. "Thermophile Research in Yellowstone Helps Guide the Search for
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groups‚ including green bacteria‚ purple bacteria‚ spirochaetes‚ Gram-positive bacteria and cyanobacteria How technological advances impacted on classifying Procaryotes Technological advances in the development of microscopy‚ particularly the development of the electron microscope‚ have increased our knowledge of procaryotic organisms. 3. Cyanobacteria The environment it occupies Cyanobacteria live in environments that are naturally wet or damp. These environments include: ponds‚ streams
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nitrogen cycle. Methanogenesis cycle convert carbon Dioxide to methane‚ nitrogen cycle convert of nitrogen in the atmosphere into biological nitrogen. Cyanobacteria are single-celled organism lived in water and soil‚ it can tolerate great ranges in salinity and temperature. Mostly found around open area where sunlight are presented. Cyanobacteria were also the first organisms use photosynthesis on Earth which release oxygen as waste product‚ because of that‚ they tiled the balance of early Earth
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