The only effective way to store bacterial cultures for short periods of time is to arrest their metabolism by freezing. T or F?
An endospore is a dormant tough and non-reproductive structure produced by some bacteria in the phylum Firmicutes. The name "endospore" is suggestive of a spore or seed-like form (endo means within) but it is not a true spore (i.e. not an offspring).It is a stripped-down dormant form to which the bacterium can reduce itself.
Death is the permanent irreversible cessation of all biological functions that sustain a living organism. Brain death is sometimes used as a legal definition of death. The remains of a previously living organism normally begin to decompose shortly after death. Death is an inevitable universal process that eventually occurs in all living organisms. Death is generally applied to whole ...
Human nutrition deals with the provision of essential nutrients in food that are necessary to support human life and good health. Poor nutrition is a chronic problem often linked to poverty food security or a poor understanding of nutritional requirements. Malnutrition and its consequences are large contributors to deaths physical deformities and disabilities worldwide.
Tooth decay also known as dental caries or cavities is the breakdown of teeth due to acids made by bacteria. The cavities may be a number of different colors from yellow to black. Symptoms may include pain and difficulty with eating. Complications may include inflammation of the tissue around the tooth tooth loss and infection or abscess formation.. The cause of cavities is acid from ...
Water (H2 O) is a polar inorganic compound that is at room temperature a tasteless and odorless liquid nearly colorless with a hint of blue.This simplest hydrogen chalcogenide is by far the most studied chemical compound and is described as the "universal solvent" for its ability to dissolve many substances. This allows it to be the "solvent of life": indeed water ...
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