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Increased resistance in bacteria after repeated exposure to antibiotics is due to?
mutations that allow the bacteria to survive the antibiotic's effects, leading to the selection of resistant bacterial strains. These resistant strains can then replicate and spread, making subsequent infections harder to treat. Additionally, the overuse and misuse of antibiotics can contribute to the development of antibiotic resistance.
What is the difference between pathogenic staphylococci from non-pathogenic strains?
Pathogenic staphylococci can cause infections in humans, while non-pathogenic strains do not typically cause harm. Pathogenic strains often produce toxins and enzymes that contribute to disease, while non-pathogenic strains lack these virulence factors. Additionally, pathogenic strains are more likely to be antibiotic resistant compared to non-pathogenic strains.
How do tree roots break rocks into smaller pieces.?
If a plant has roots that are inside cracks inside a rock, the roots can force deeper into the rock as the roots and the plant continue to grow, splitting the rock apart over time. This can happen when trees grow near pavements (cracks in the tarmac).
How does the increase of resistance to antiviral drugs in HIV relate to the theory of evolution by natural selection?
The ones with worse resistance are less suited to suvival, and hence are selected against by being destroyed by antivirals more often. When repeated, this means successively more and more of each generation is highly resistant, or that the reistsance is higher in each one. This is almost exactly the definition of natural selection, replacing the general trait with the specific resistance to antivirals.
Vaccines against the flu are different every year why is this?
The flu virus constantly mutates, leading to new strains every year. Vaccine manufacturers update the vaccine annually to include the most prevalent strains, providing the best protection. This process helps ensure that the vaccine is effective against the specific flu viruses circulating each year.
What is very bad diarrhoea and dehydration and vomiting caused by?
Drinking contaminated water, ingesting certain poisons, and contracting certain strains of influenza.
Increased resistance in bacteria after repeated exposure to antibiotics is due to?
mutations that allow the bacteria to survive the antibiotic's effects, leading to the selection of resistant bacterial strains. These resistant strains can then replicate and spread, making subsequent infections harder to treat. Additionally, the overuse and misuse of antibiotics can contribute to the development of antibiotic resistance.
A sentence with indiscriminate?
"Having indiscriminate sexual relationships can increase the risk of contracting HIV." "The indiscriminate gunfire injured at least a half dozen innocent bystanders." "There are now resistant strains of bacteria due to the indiscriminate use of antibiotics for minor infections."
How many strains of enteroviruses are there?
There are close to 70 different strains of enteroviruses
Is there any risks being pregnant and working with birds?
Various strains and types of avian flu could be around so should be careful of those types of sicknesses. Should check fully and see what precautions you can take to avoid contracting any sicknesses from birds
What is a sentence using the word indiscriminate?
"Having indiscriminate sexual relationships can increase the risk of contracting HIV." "The indiscriminate gunfire injured at least a half dozen innocent bystanders." "There are now resistant strains of bacteria due to the indiscriminate use of antibiotics for minor infections."
What are symptoms of strains?
Strains can range from mild muscle stiffness to great soreness.
Are there millions and millions of E. coli strains?
There are over 700 known strains of e.coli
What is the meaning of strains in Australian National Anthem?
As used in 'joyful strains', it means musical tunes.
Are there different strands of rabies?
Five antigenic variants of rabies strains are recognized in the United States, but unlike flu strains, one vaccine protects against all strains.
Are there different strains of moose?
no
What are the release dates for Understanding Stresses and Strains - 1968?
Understanding Stresses and Strains - 1968 was released on: USA: 1968
