Saprophytes: Parasites living on animals
By: Janet Grischy
Beside the narrow roads at Lassen Volcanic National Park grow plants that look somewhat like tall red hyacinths. That sketchy description doesn't do them justice though; they're gorgeous. They're called Snow Plants. Their scarlet spears stand out vividly against the gray-green pines in the last...
The difference between bacteria and viruses
By: Tami Port MS
Bacteria and viruses are often lumped together into a general category of "bad things that can cause infection". But these two types of infectious agents are very different, and the differences are important to your health. * What Is a Cell? * Bacteria are living...
By: Tami Port MS
The location of the peptidoglycan polymer in the cell walls allows for bacterial identification, differentiating Gram+ from Gram- cells. * What Is Peptidoglycan?* Peptidoglycan is a huge polymer composed of interlocking chains of identical monomers, the backbone composed of two derivatives of glucose: N-acetylglucosamine...
What you should know about edible microbes
By: Jennifer Allsbrook
One does not usually associate the words edible and microbe. Instead "microbe" evokes images of disease-causing bacteria or viruses as seen through the lens of a microscope. Edible microbes, however, encompass a wide variety of organisms ranging from the edible fungi to others such as...
The use of fungi in making bread
By: Exception
YEAST! Does that sound familiar? Well that is a type of fungus.For bread making the particular type of yeast used is Saccharomyces cereveciae.S. cereveciae is said to have been recovered and used as a leveling agent for bread as far back as 2500BC...
The difference between bacteria and viruses
By: Johnny Anderson
There are several key differences between Bacteria and Viruses, the most obvious being physological. Bacteria as prokaryotes lack the membrane bound organelles and nucleus found in Eukaryotic cells. However like Eukaryotes Bacteria have a lipid based cell membrane that encloses their cytoplasm. Outside of this...
Using Frozen Animal Sperm to Repopulate the Wild
By: R.A. Scott
Putting human male sperm on ice is something that has been a part of reproductive science for a significant amount of time. Placing animal sperm on ice and then rejuvenating it has proven much more problematic. Recently however several animal species have successfully given birth...
By: Jim Bessey
Bacteria rule the world. No matter where you go or what you're doing, you cannot escape them. Nor would you want to. They're inside you, on every surface you touch, in the air you breath, and an integral part of every living thing around you...
Extremophiles: Living organisms in extreme conditions
By: Janet Grischy
Extremophiles are proof of the toughness and variability of life. They are organisms found in conditions of cold, heat, pressure, dryness or darkness that are unendurable to humans. They can be found in hydrothermal vents deep beneath the oceans, in hot springs, in the dry...
By: Janet Grischy
The algae zooxanthellae are not coral, but they make coral reefs possible. They live within the body of coral polyps and busily photosynthesize, which the coral themselves, being animals, cannot do. This is why reef-building coral polyps, which do not need sunlight themselves, only live...

 

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