It was the first methodological study<span> of a social fact in the context of society.</span>
1. Samples of a microbial colony obtained from the natural environment are not pure culture. They are mixed cultures because the environment consists of an array of microorganisms and not one specific organism. A sample obtained from the natural environment such as water or soil may contain several species of microbes that need to be further isolated to obtain a pure culture.
2. Isolation streak plate technique involves the dilution of the sample several folds and then streaking a small amount using a sterile inoculation loop on an agar plate in a zig-zag manner. This is done to obtain a pure culture of bacteria from a mixed population by separating the microprocessor. When the sample is diluted into a small concentration and is streaked onto agar placed, widely spaced, discrete colonies of bacteria can be observed. These isolated colonies can be further cultured to obtain pure cultures by picking and re-streaking them on fresh agar plates.
3. A microbial colony is considered a pure culture because it consists of single species. A single species of bacteria cluster and form an isolated colony on an agar plate which can be further plated on fresh medium.
3-1 - If your agar plate shows discrete uncluttered colonies then you have obtained an isolated colony. The following picture might help you to understand.
3-2. If you subculture isolated microbes into a sterile nutrient broth without any contamination, it will still be considered pure culture because it is single isolated species in a sterile aseptic environment of the nutrient broth.
3.3. A pure culture can become a mixed culture due to contamination. This could be caused by airborne bacteria if your conditions are not aseptic. Contamination is possible if the work area is not clean and sterile or if the glassware is not sterile. The contamination can transform your pure culture into a mixed culture and is hence problematic. So, it is very important to maintain a sterile and aseptic environment, glassware, and instruments.
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The situation represented above is an example of common conflict between parents and their adult children that is called conflict of intergenerational relationships. People from different generations have different views towards many issues such as education and nurturing. People that belong to different generation type have different life perspective therefore some older people can consider modern parents' ways of nurturing to be inappropriate.
Answer: D) groupthink
Explanation:
Groupthink refers to a situation in which a group of people come together and make decision without thinking of the effect or outcome. People in the group collectively reach general agreement by giving optimum importance to the opinion and view of the group instead of individual’s opinion and view. It usually happens when groups have limited time to make decision and as a result they resolve to general opinion of the group. Thus, this is done in order to keep the unity and peace of the group.
