The most likely to be found in a dichotomous key for identifying a tree by its leaves are the leaf bases attached opposite to each other on the branch.
<h3>How is a dichotomous key used to identify species?</h3>
A dichotomous key is an essential scientific tool, used to identify different organisms, established the organism's observable characters. Dichotomous keys consist of a series of statements with two choices in each step that will lead users to the correct identification.
Thus, option "c" is correct.
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Answer:
Explanation:
One way to spread awareness about organ donation is to update you
Answer:
Streptococcus mutans
Explanation:
Tooth decay results from metabolic activity of the microbes which live on teeth.
A layer of carbohydrates and the proteins forms when the teeth which is clean come into contact with the saliva.
Certain microbes are attracted to these biomolecular food source and thus form a biofilm which is known as plaque.
<u>Streptococcus mutans is the most important cariogenic species. </u>
When a disaccharide sugar from the food, is broken down by the bacteria in mouth, the units glucose and the fructose are produced. Glucose is used to make the dextran, which is part of extracellular matrix of biofilm. Fructose is fermented which produces organic acids which dissolve minerals of tooth. The plaque biofilm overtime become thick and calcify eventually.