A specific group of bacteria called the lactic acid bacteria (Lactobacillus species) that produces lactic acid as they grow.
For observation and research. This is to analyse their features, structures, physiology and other possible mutations -genetic structures that have caused it to arrive at this rate.
Cancer cells are the result of those cells that deviate from the normal life cycle of a cell. These cancer cells refuse to die and rapidly increase in number due to the uncontrollable burst of cell division.
Shown in the picture is a food web, which shows who eats the producers, and in turn who the predators are. It does not only show one chain, rather, a variety.
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The right answer is: Bleeding oesophageal varices
Bleeding oesophageal varices occur when swollen veins (varicose veins) of the lower esophagus rupture and bleed.
Oesophageal varices may leak blood and eventually rupture. This can lead to serious bleeding and life-threatening complications, including death. When that happens, it's a medical emergency.
