Answer:
The Alien and Sedition Acts
Explanation:
<span>The statement that a speaker who argues that the world's monarch butterfly population is in danger because their numbers have decreased in several locations is reasoning from specific instances is true.
</span><span>In this informative speech, the speaker acts as a teacher. </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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Answer:
People must abandon their homes and seek shelter in other regions which may cause health care and education to food rations and basic hygiene.
Explanation:
One of the most critical impacts of natural disasters is community displacement. When nations are devastated by earthquakes and other strong powers of nature, many people have to evacuate their homes and seek asylum in other regions.
A large introduction of refugees can interrupt everything from the approachability of health care and education to food rations and basic hygiene.
Answer: You are sitting at a Mexican restaurant waiting for your food. The waiter brings a very hot plate, telling you to be careful about touching it. You touch it anyway, producing a pain sensation in your fingers, a withdrawal of your hand, and an auditory comment of what you are thinking. This scenario represents an <u>involuntary</u> act on the neuronal circuit.
Explanation:
<em>The neurons</em> of an organism form <u>numerous circuits </u>that originate very complex networks. The nervous current that circulates through them produces two <u>types of acts:</u>
- Involuntary Acts. (reflex arc)
They are<u> fast, automatic, and are performed without the action of the brain</u>. In a reflex act, sensitive information only reaches the spinal cord, so the <em>response is automatic</em>. They are the ones that are performed when a quick response is needed.
They are <u>varied, changing, and more elaborated.</u> Voluntary acts are carried out in a conscious way and are <em>controlled voluntarily</em>. Not all are a consequence of the reception of an external stimulus, since t<u>hey can be produced directly in the cerebral cortex</u> without the need for an external stimulus.
