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Microbial Inhabitants of Humans - Assets
Microbial Inhabitants of Humans - Assets

... immediate environment. These will include, therefore, not only microbes from other human beings, but also organisms from soil, water, and vegetation that may be present. All of the studies that have been carried out on neonates have shown that, within a very short time following delivery, microbes a ...
Airgas template
Airgas template

... agents or probiotics Copyright © 2011 Wolters Kluwer Health | Lippincott Williams & Wilkins ...
Bacteria and Hand Washing
Bacteria and Hand Washing

... vents where it gets as hot as 700ºF and others live at the South Pole in temperatures as cold as - 120 ºF. 5.These live almost everywhere. They cover everything, including your skin. They live in water, dirt, food, and in the air. They live inside you: in your mouth, stomach, and lungs. ...
Helpful and Harmful Microorganisms
Helpful and Harmful Microorganisms

... Certain types of bacteria live in the intestines of human beings. They help in digestion and in destroying the harmful organisms. Intestinal bacteria also produce some vitamins required by the human body. Certain bacteria helps break down lactose in the digestive tract. Healthy stomach bacteria are ...
Bacteria - Pandem-Sim
Bacteria - Pandem-Sim

... impact your daily life. Your body has many different kinds of bacteria that perform vital metabolic functions and provide key protection against foreign substances. But, bacteria can also be pathogenic (disease-producing). ...
Endogenous Microbial Flora
Endogenous Microbial Flora

... • Healthy carriers, e.g. diphtheria, meningitis • Lower RT: Free of microbes (defenses) ...
Population Dynamics
Population Dynamics

... mouth is also an excellent example of microbial succession over time. Newborns are bacteria free, but quickly obtain a microflora from passage through the birth canal, mother’s skin (touching and during breast-feeding) and mouth (kissing), and from the environment. Many of these initial inhabitants ...
Evolving together: the biology of symbiosis, part 1
Evolving together: the biology of symbiosis, part 1

... soredia, composed of fungal threads and algae. They also reproduce by spores produced in fruiting bodies made by the fungus; when these spores germinate, they must capture new algal or cyanobacterial cells to form new lichens. They may even “steal” them from other lichens. Molecular studies show tha ...
Archae and Bacteria ppt
Archae and Bacteria ppt

... • Live in a chemical soup of hydrogen sulfide (H2S) and other dissolved minerals (rotten egg smell) Thermo = temperature Acidophil = acid loving ...
Eubacteria
Eubacteria

... to cheese by causing the souring of milk that begins the cheese making process,  bacteria convert grapes to wine and then wine to vinegar  The name for this process is ...
Bacteria Powerpoint
Bacteria Powerpoint

... • Live in a chemical soup of hydrogen sulfide (H2S) and other dissolved minerals (rotten egg smell) Thermo = temperature Acidophil = acid loving ...
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The strange, beautiful and powerful world of microbes
The strange, beautiful and powerful world of microbes

... • Toxoplasma gondii, a parasitic infection in rats, alters their natural behaviour and makes them easy prey for cats. • Toxoplasma gondii is found in about 35% of rats but prefers to live in cats. • It ensures its return to its favourite host by affecting the brains of the normally cautious rats, ma ...
Bacteria
Bacteria

... • Toxoplasma gondii, a parasitic infection in rats, alters their natural behaviour and makes them easy prey for cats. • Toxoplasma gondii is found in about 35% of rats but prefers to live in cats. • It ensures its return to its favourite host by affecting the brains of the normally cautious rats, ma ...
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Human Decomposition Ecology

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department of biology - Medgar Evers College
department of biology - Medgar Evers College

... Additional Reading: Journals, Articles & Use of Computers encouraged. ...
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Life`s unity and flexibility: the ecological link

... evidence for the unity of biochemistry, that is, that in all living cells chemical energy is generated by the transfer of electrons and protons to a variety of acceptors. The electron donors are determined by the electron acceptors because of thermodynamic principles, which tell us that an energyyie ...
HYDROTHERMAL VENTS AND CHEMOSYNTHESIS:
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... though we might consider this to be a harsh environment, hydrothermal vents are abundant with life. In fact, more than 300 species live around the vents and are unique to this type of environment. These Tubeworms in a Hydrothermal Vent creatures include tubeworms, fish, crabs, shrimp, clams, and che ...
General Microbiology 11:680:390 Description: General Microbiology
General Microbiology 11:680:390 Description: General Microbiology

... Overall Learning Goal: Students are expected to gain a fundamental understanding of microbes including viruses, Bacteria, Archaea and eukaryotic microorganisms. Learning Goals for General Microbiology Lecture: After completion of the lecture component of the course, successful students will: 1. Demo ...
Let`s Build a Tube Worm
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... primary source of energy. Instead, these communities derive their energy from chemicals through a process called chemosynthesis (in contrast to photosynthesis in which sunlight is the basic energy source). Some chemosynthetic communities have been found near underwater volcanic hot springs called hy ...
Microbiology Term Paper
Microbiology Term Paper

... Unfortunately, the origin of life and its form is still unknown, but it is understood that the current lineage of life originated at least 3.9 billion years ago, if not later, due to the fact that at an earlier time, the Earth was still being bombarded by debris in the inner solar system with enough ...
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Microbial mat



A microbial mat is a multi-layered sheet of microorganisms, mainly bacteria and archaea. Microbial mats grow at interfaces between different types of material, mostly on submerged or moist surfaces, but a few survive in deserts. They colonize environments ranging in temperature from –40 °C to 120 °C. A few are found as endosymbionts of animals.Although only a few centimetres thick at most, microbial mats create a wide range of internal chemical environments, and hence generally consist of layers of microorganisms that can feed on or at least tolerate the dominant chemicals at their level and which are usually of closely related species. In moist conditions mats are usually held together by slimy substances secreted by the micro-organisms, and in many cases some of the micro-organisms form tangled webs of filaments which make the mat tougher. The best known physical forms are flat mats and stubby pillars called stromatolites, but there are also spherical forms.Microbial mats are the earliest form of life on Earth for which there is good fossil evidence, from 3,500 million years ago, and have been the most important members and maintainers of the planet's ecosystems. Originally they depended on hydrothermal vents for energy and chemical ""food"", but the development of photosynthesis gradually liberated them from the ""hydrothermal ghetto"" by providing a more widely available energy source, sunlight, although initially the photosynthesizing mats still depended on the diffusion of chemicals emitted by hydrothermal vents. The final and most significant stage of this liberation was the development of oxygen-producing photosynthesis, since the main chemical inputs for this are carbon dioxide and water.As a result, microbial mats began to produce the atmosphere we know today, in which free oxygen is a vital component. At around the same time they may also have been the birthplace of the more complex eukaryote type of cell, of which all multicellular organisms are composed. Microbial mats were abundant on the shallow seabed until the Cambrian substrate revolution, when animals living in shallow seas increased their burrowing capabilities and thus broke up the surfaces of mats and let oxygenated water into the deeper layers, poisoning the oxygen-intolerant micro-organisms that lived there. Although this revolution drove mats off soft floors of shallow seas, they still flourish in many environments where burrowing is limited or impossible, including rocky seabeds and shores, hyper-saline and brackish lagoons, and are found on the floors of the deep oceans.Because of microbial mats' ability to use almost anything as ""food"", there is considerable interest in industrial uses of mats, especially for water treatment and for cleaning up pollution.
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