Answer:
Communication
Explanation:
Communication refers to the process by which ideas are exchanged from one party to another through a medium. The exchange of information is said to be complete when it reaches the receiver in the way as it has been sent by the speaker. The process of communication involves a speaker, a receiver, a message to be transferred and a medium. All these elements help in the smooth flow of communication.
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.
Learn more about subcultured at
brainly.com/question/26525141
#SPJ4
Answer:
Performance.
Explanation:
Jessie and Johanna have discharged their contracts by performance. Performance means that both parties have done what was arranged and required by a contract. In other words, when a contract is discharged by performance what is being said is that it was a successful performance of the contract; where both parties were bound to, perform, realize certain things and did so as arranged.
1. Senatorial courtesy<span> is a long-standing unwritten, unofficial, and nonbinding political custom (or constitutional convention) in the United States describing the tendency of U.S. senators to support a </span>Senate<span> colleague in opposing the appointment to </span>federal<span> office of a presidential nominee from that </span>Senator's<span> state.
2. </span><span>Appointment to Judicial Branch. ... The appointment process serves as a </span>check and balance<span> on the judicial branch because the members of the other two branches select the members of the judicial branch. They </span>choose<span> the Supreme Court </span>justices<span>and all </span>federal<span> court </span>judges<span>.</span>
