Many biological systems classify the organism based on the cells, reproduction, simplicity and complexity. The discovery of the new species and arrangement based on the hierarchy led to the change.
<h3>What was the new classification system?</h3>
Aristotle gave the most primitive biological hierarchical classification system that was replaced by the system of the Linnaeus. He gave the classification based on the taxonomy groups.
With time many new organisms and species were discovered that did not fit in Aristotle's classification system. Hence, with time new systems were established to classify the organism based on many new parameters.
Therefore, option A. new system was established to classify the new organism discovered.
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Fixation I believe, hope it helps!!
This process is called alcoholic, or ethanol, fermentation, since the type of alcohol formed is the chemical ethyl alcohol (aka ethanol).
The answer is D. We can't directly use the nitrogen from the air so we need the bacteria to change it into something that we can use.