Which items are sources of soil pollution
Answer:plastics
The correct answer is increased crash risk.
Crash risk refers to the risk of being involved in a motor vehicle mishap. It refers to the risk associated with the happening of a road accident, generally determined as the outcome of the probability (likelihood) and severity (magnitude) of the incident, like road crash.
The phenomenon of crash risk elevates when it is combined with extreme emotional pain with abuse or substance use.
A.vibrates with the frequency of the received sound
<h2>Correct answer is option"e"</h2>
Explanation:
- Headache is a migraine which influences one portion of the head which endures from 2-72 hours.
- It influences a larger number of young male than young females before puberty and more young females then young male after puberty. The normal side effects incorporate retching, sickness, affect ability to light, stable and smell.
- Prevalence is characterized as the quantity of influenced people present in a populaces at a particular time partitioned by the quantity of people in the populace around then.
- Hence, the correct answer is option "e"
Answer:
You are interested in obtaining Staphylococcus aureus for a study investigating the prevalence of methicillin-resistant Staphylococcus aureus in the general population. You have received several samples and are ready to start your isolation procedures. Describe the personal protective equipment that would be needed and three different culturing techniques that can be used to obtain organisms to produce pure cultures. State if you use general or selective media and which specific media you would choose. How would you determine if the culture was contaminated? What is the first step you would take if you detected contamination?
Personal Protective equipment needed; No special precautions are necessary when working with methicillin-resistant staphylococcus aureus, staphylococcus aureus is a bio-safety level
Three different culturing media; to include;
- Etest Method
- Disc Diffusion
- Latex Agglutination.
Properly enriched selective media is used.
The most accurate method for identifying Merthicillin-resistant staphylococcus is to test for the presence of mecA gene by PCR.
The best specific media is latex agglutination test and oxacillin salt agar screen.
How to determine if the culture was contaminated;
It can be spotted by the turbidity of the growth medium or the floating branching mycelia, bacteria contamination can be detected under 10× microscope within few days of contamination.
Step to take if contamination is detected;
Biological contamination is a serious issue and being able to correctly identify different types of contamination is an essential first step in ensuring the safety of your culture.
Explanation:
The literature on methicillin susceptible testing is extensive, and often conflicting in recommendations regarding the most important method for routine use. this is partly because the various studies of phenotypic methods have included different strains, which may differ significantly in heterogeneity and behave differently under particular test condition.
