A) a low of stress related illness
The type of microscope described above is the <span>phase contrast microscope. This microscope can produce high contrast images useful when observing transparent objects like living cells, microorganisms or tissue samples.
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These are spores, which are produced by bacteria and are involved in survival or reproduction. Some different types include endospores, which are heat-resistant spores formed within the cell, cysts, which are dormant cells sometimes enclosed in a sheath, arthrospores, which are produced by different bacteria as part their reproductive cycles and myxospores, which are formed within a fruiting body.
Fossils reveal what may have been living in the surrounding environment hundreds of years ago.