Answer:
Fatty acids are long chain carboxylic acids, they contain the carboxyl, COOH, functional group. The general formula for a fatty acid is R-COOH where R represents a long hydrocarbon chain. If the hydrocarbon chain, R, contains only single bonds between the carbon atoms, the fatty acid is said to be saturated.
SDS-PAGE electrophoresis is used to verify the purity of a protein product. Some of the limitations of this method are:
<span><span>· </span>identification of a band on a protein gel is not always reliable because different polypeptides can have very similar molecular masses,</span>
<span><span>· </span>band on a protein gel may mask the presence of more than one polypeptide,</span> <span><span>· </span><span>presence of non-protein residues can affect the mobility of polypeptide and thus cause an error.</span></span>
Answer:
C.
Explanation:
Empirical evidence is evidences obtained by direct observation, sensual perception, or direct measurement. It is then processed and useful data gathered and stored in a material form or documented to provide a record of the measurement.
With the aid of empirical evidence, it is possible for researchers to find answers to question regarding topics that can vastly impact everyday life.
With empirical evidence, it is possible to determine the effects of treatment in a study such as the invention of working car safety devices such as seat belts and airbags.
The reason for this change is "Technological advances led to the discovery of single-celled organisms and increased our understanding of relationships between organisms"
<h3>Why bacteria and archaea should be classified into different kingdoms?</h3>
Archea and bacteria are both prokaryotic organisms ( organisms without defined organelles and nucleus) that share common features such as a similar morphology and similar ways to obtain food/energy. However, these organisms have important differences such as RNA type, they have a slightly different morphology and they live in different habitats.
<h3>Why did this change in classification occurred?</h3>
This change occurred due to technological advances. Indeed, the classification of organisms into 4 kingdoms occurred by the beginning of the 20th century when unicellular prokaryotic organisms had not been completely studied, and therefore it has not been determined this group included two sub-groups.
Learn more about organisms in: brainly.com/question/12825206
