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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I would say that the independent variable is the violent film, as it is what is being changed in the experiment.
Answer: a) Sales
Explanation:
Fulfillment is defined as the mechanism in which orders are received, made ready and then delivered to the consumer. Execution of order from preparing stage to shipping to customer is done through fulfillment.
Sales department of organization is the section that holds the process of receiving orders from customer, preparing the good or product and sending it to recipient.
Other options are incorrect because accounting department,warehouse department and purchasing section are not the fulfillment department/block of any organization .Thus, the correct option is option(a).
Answer:
The correct answer is - conflict is resolved the differences are also resolved.
Explanation:
Cordial conflicts are the conflicts that occur inside an institution because of a lack of coordination among the staff members and students or the team members and it will reduce the amount of trust and loyalty among the members or students.
To reduce cordial conflicts is to establish trust and resolve the problems by dialogue among the members of the institution. It can be easily solved by developing a convincing and trustworthy relationship among the people by improving the terms of a good relationship.
Resolved conflict can also solve the problems within an institution and so it was a change in the previously hostile environment. Conflict results in people become angry tensed environment, but once this conflict is resolved the differences end and the environment becomes "normal" again.
Answer: Malik's approach best illustrates: TRIAL AND ERROR PROBLEM SOLVING.
Explanation: Trial and error problem solving involves a process whereby to find a solution to a problem, many possible solutions are tried and the researcher learns from mistakes until a way is found. This method is characterized by repeated, varied attempts which are continued until success.
