A.it includes letters and books gathered over 1200 years, and consists of two parts.
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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<span>I believe your answer is: The settlers cooperated with the American Indians because they needed the American Indians’ help to survive.
(This didn't last for very long, but it was good while it worked at first.)
Voila! I hope that helped :D</span>
Because the music you chose has to be the one that you like listening to the most, you ought to take into consideration whether you love to listen to music that is African, Indian, Japanese, or Latin before making your decision. This will be discussed in further detail below.
<h3>How can we define music?</h3>
In most cases, the combination of vocal or instrumental sounds (or both) results in the creation of a beautiful form, harmonious arrangement, and emotional expression.
Before you settle on the kind of music that you like most, you should give some thought to expanding your musical horizons by listening to music from other cultures, such as Africa, India, Japan, or Latin America.
Learn more about music through reading.
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Answer: The statement implies adapting the Constitution to all sections of society.
Explanation:
The American Constitution, in its concept, is often viewed as the first modern democratic document. It is based on the rule of law and liberties. The Constitution is the cornerstone of the American democratic society. The Constitution covers all sections of American society. It seeks not to discriminate against anyone on the basis of racial, religious or ethnic origin, given that American society is a conglomerate of nations and nationalities. As such, the Constitution has a broad social framework. In its conception, it is a changing category, so as such it has been evoking and adapting throughout the current social and political currents throughout history. This is why the Constitution has historically been widely used.
