The thoracic cavity is separated from the abdominopelvic cavity by the diaphragm
refer to the taxonomic groups that are consistently utilized in organism hierarchy classification. Sub-phyla, subclasses, suborders, subfamilies, subgenera, and variations are a few examples of .
:It is challenging to classify newly discovered creatures into established categories. As a result, the prefixes "super" and "sub" have been added to the existing categories, such as sub-kingdom, sub-phylum, super class, etc. These are categorized as . This has also made the placement of different taxa more soundly and scientifically.
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The answer is: A. collecting data
During this process , researchers would use their observational skills and record every notable occurrence that happen to the variables.
The focus on this process is simply to add all relevant data without making any analyzation. That process come later on after the researchers started to change the variables in order to see whether it would create a correlation.