Answer:
Acetylcholine
Explanation:
Acetylcholine is the neurotransmitter that promotes rest by binding muscarinic receptors after a meal. This neurotransmitter is used at the neuromuscular junction, and it is released by the motor neurons of the nervous system in order to activate muscles. This is most likely the reason why Maddie does not want to go swimming after eating.
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 Reorganization Act of that was passed on April 3, 1939 is an Act of the United Stat es Congress giving the U.S. President the power to employ more confidential staff and restructure within definite limits the executive branch for two years and will be subject to legislative veto. It was the first time the executive branch had undergone a major restructuring since 1787. This led to the creation of the Executive Office of the President through Reorganization Plan No. 1
It’s A officers could size any good without court permission
Answer:
no spanish
Explanation:
very sorry. you can search it up
