Biosphere is everything living on Earth
The lithosphere is the earth, as in ground
Hydrosphere is the water
Atmosphere is the gases that make up Earth’s barrier from space/ the sky.
Hope this helps!
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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Identity is a set of acttitudes and characteristics that differentiate us from other people, identity begins to form inside the family nucleus and is determined mainly by the environment in which the individual develops, then adolescence shows up and society comes into play, there we adopt other values and even modify some of our own, the society in which we develop will tell us which values are more accepted than others, but when we reach adulthood, we are a little more capable of determining what we accept and what we don´t, but our identity has already formed.
Here are a few
•The settlements of land disputes over the Ohio Valley.
•It proved to be a stepping stone towards the present constitution.
•Territorial arguments were settled, which led to greater expansion of the U.S.
All that was copied and pasted were the bullet points but they're still probably going to delete my answer.
It is a true statement that the atheists today are using the Ockham's razor to attempt to argue against God's existence despite huge evidence of his presence.
<h3>What is the Ockham's razor? </h3>
Ockham's razor refers to an act of trying to understand something thereby getting some unnecessary information is seen as the fastest way to the best explanation.
In conclusion, it is a true statement that the atheists today are using the Ockham's razor to attempt to argue against God's existence despite huge evidence of his presence.
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