The correct answer is C. Physical attractiveness.
Explanation
The matching hypothesis is a theory about interpersonal relationships that states that people tend to mate with people who are similar in physical attractiveness. This theory argues that before mating, people assess themselves, establish their level of physical attractiveness and establish characteristics for potential partners who share this same level of attraction. So, the correct answer is C. Physical attractiveness.
The complete phrase is "The matching hypothesis suggests that people will form relationships with others who are similar in physical attractiveness"
The executive officer would be a County Clerk.
The County Clerk is a Constitutional officer who is elected every four years. He is responsible for keeping and maintaining records of births, deaths, assumed names etc. He is issuing and filing marriage licences, gun permits and notary bonds. He is also responsible for processing passports.
County Clerks can either be elected or appointed, depending on a particular state's law.
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
A diplomatic mission <span>s a group of people from one </span>state<span> or an international </span>inter-governmental organisation<span> (such as the </span>United Nations<span>) present in another state to represent the sending state/organisation officially in the receiving state. In practice, a </span>diplomatic<span> mission usually denotes the </span>resident mission<span>, namely the office of a country's diplomatic representatives in the </span>capital<span> city of another country. As well as being a diplomatic mission to the country in which it is situated, it may also be a non-resident permanent mission to one or more other countries. There are thus resident and non-resident embassies
</span>
