Answer:
ion even know what this means
Explanation:
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.
The optic canal transmits the optic nerve and ophthalmic artery(option-E).
<h3>What is ophthalmic artery?</h3>
The internal carotid artery's first branch is the ophthalmic artery. It separates right near the cavernous sinus. The orbit, meninges, face, and upper nose are all supplied by the numerous branches that the ophthalmic artery produces. Vision may be compromised if the ophthalmic artery is blocked.
The lacrimal gland, conjunctiva, and eyelids are all supplied by it. In order to supply the posterior uveal tract, the ophthalmic artery releases a number of posterior ciliary arteries that cross the sclera. Being end vessels, the posterior ciliary vessels are susceptible to sudden occlusion, which can result in infarction in the choroid region.
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Hello! The largest mass extinction in Earth's history occurred about 250 million years ago, right before the dinosaurs appeared. Devonian Period ended about 355 million years ago, which was before the mass extinction occurred. Therefore, C is eliminated. The Cambrian Period came before Devonian Period, ending around 485 million years ago, which also eliminates A. Ordovician Period ended about 445 million years ago, which also before the mass extinction. B is gone, which leaves us to the last available answer choice being D. The Permian Period ended around 250 million years ago, which was the time of the mass extinction. The largest mass extinction even occurred at the end of the Permian period. The answer is D: Permian.
When the spring is compressed its potential energy will increase.
<u>Explanation:
</u>
- When you a compress or stretch a spring that you work against the restoring work of the spring the potential energy of the spring increases.
- This work is stored as the elastic potential energy of the spring. The potential energy increases with displacement from the equilibrium position of the spring
- So, when the compression is doubled its potential energy increases double the time along with displacement.
