When conducting tests for the presence of a specific organic substance, it is very useful to include an Experiment control.
<h3>What are chemical changes?</h3>
A chemical change is defined as a change in which a change in chemical composition takes place. A new substance is formed in these reactions. Chemical reactions are usually characterized by a change in colour, heat change, precipitate formation and evolution of bubbles.
Example: Oxidation of magnesium
Thus, this could be the answer.
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Plasmodium, Trypanosoma and Babesia
<span>Peripheral blood
smear is knwon to be a basic and informative tool used by the clinicians for
diagnosis, screening and monitoring of diseases therapeutic response and
progression. Parasite detected or
identified during microscopic examination of peripheral blood smear stained
with Giemsa or other stains could be Palsmodium, Trypanosoma and Babesia</span>
Answer:
<em>The correct option is A) if the research uses anonymous questionnaires</em>
Explanation:
For research studies, it is always important that the consent of the participants be taken if they are to be mentioned in the research. Without the consent of a person, a researcher cannot use anything related to that person in his research. However, in scenarios where you have to keep the data anonymous and just depict the results, consent is not necessary. However, one should recognize that apart from anonymous studies, not taking consent of the participants is unethical.
It's between the Sagittarius and Perseus Arms of the Milky Way. The image below shows it. Our sun is located the Orion Arm<span>, or </span>Orion Spur<span>, of the Milky Way galaxy. It's a minor spiral arm, located between two other arms.</span>
