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Eubacteria
features of the group - eubacteria has rigid walls and undiffentiated cells. bacteria can be shaped in different ways such as circular, rod shaped, wavy or spiraled shaped.

role in the ecosystem -
Bacteria play an important role in the environment. Many dead materials are decomposed by bacteria. If there were no bacteria, the environment would have been polluted and full of harmful microorganisms. They degrade the dead organic matter and convert it into energy and nutrients. For example, they decompose trees and get their food from them in the form of nutrition. Organic carbon present in the environment in the form dead organism is able to eat up all the carbon dioxide from the atmosphere if there were no decomposers in the on earth.

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Cyanobacteria is a phylum of bacteria that obtain their energy through photosynthesis. Cyanobacteria are the only photosynthetic prokaryotes able produce oxygen. It lives in a wide variety of moist soils and water.
The role of the cyanobacteria in an ecosystem is produce oxygen into the environment. Therefore, turns turns the evironment from anoxic to oxic.

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features of the group
are salt thriving organisms that flourish in saline environments. Halophiles dont have to depend on oxigen as a source of energy, they are able to collect energy from else where making them heterotrophic.

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Features Of the Group;
Methanogens are an important group of microorganisms. Methanogens produce methane and generally reside in the guts of animals, deep marine sediments and wetlands.
Their Roles in the Ecosystem;
Methanogens play an important role in the environment, especially anaerobic ecosystems. They remove excess hydrogen and fermentation products produced by other organisms due to forms of anerobic respiration. They play a positive role in their environments.
Present Day Environments;
Methanogens can reside in many environments these include, deep marine sediments, human and animal guts, hydrothermal vents and wetlands.
Past environments;
Due to the Earth having an anoxic atmosphere in it's early stages methanogens dominated the environments and when the Earth's atmosphere became oxic the methanogens had to move to areas where oxygen was not reached.

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features of the group: thermophiles are microorganisms that live in temperatures between 60-108 degrees celius, thriving in environments like shallow terrestrial hot springs, hydrothermal vents, sediment from volcanic islands. They use hydrogen sulfide and converts it into carbohydrates as there source of energy.

role in ecosystem: Thermophiles turn organic matter into a source of nutrients for living microorganisms and plants to use as food.

present day environment: some types of thermophiles can be used in DNA finger printing for criminal cases

info on past: Thermophiles were more abundant in volcanoes and hot springs because they were adapted to the hot environments

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Use the plus sign in the bottom right hand corner to add a post. In your post please include the name of the organisms you are investigating in the title. You are encouraged to add pictures/diagrams and any interesting links that you would like to share.

Include:
- features of the group
- their role in ecosystems (do they have a positive or negative impact on other organisms?)
- information about their present day environment (where they are found today)
- information of their past environment (conditions on early Earth when they evolved).

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Unicellular organisms (procaryotes). Bacteria can be pathogenic are found in soil, water, air, decaying organic material and inside other living organisms.

Types:
- Eubacteria "true bacteria": the most common form of procaryotes
- Cyanobacteria: Photosynthesising procaryotes that occur in wet or damp environments such as ponds, soil and streams
- nitrogen fixing bacteria: occur in soils and convert nitrogen into ammonia

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Unicellular organisms (procaryotes). Archaea inhabit some of the most extreme environments, including hot springs, deep sea vents, or very alkaline, acidic or saline waters. Archaeans are not restricted to extreme environments and are also abundant as plankton in the oceans.

Types:
- Methanogens: Found in bogs, soil, intestinal tracts of herbivores and sewage treatment facilities
- Halophiles: Found in environments which are high in salt concentration such as lakes and evaporating ponds
- Thermophiles: Live in environments with high temperatures such as hot springs and hydrothermal vents