There surroundings around them change, like there enviroment.
For example.
A camouflage moth on a brown tree, overtime the tree grows green moss. Then the brown moth is out in the open for its prediters to eat it.
how effective it is.
This would be called a broad-spectrum antibiotic.
depends on which antibiotic you are using. For example, Azithromycin is a relatively safe and effective antibiotic. Where as Vancomycin, is a highly effective antibiotic (covers MRSA) but has a lot of morbidities associated w/ it (hearing loss, kidney malfunction, etc).
They can treat salmonella, but you generally don't take any for food poisoning, as it doesn't help clinically, and can even make it last longer, as you take longer to excrete the bug. If you're really sick, or have it in your blood, or young, though, it is given for safety Azithromycin is an effective antibiotic.
If an antibiotic is used excessively, it may destroy too many of the harmless and helpful microbes in the body, and it may result in the development of a strain of harmful microbes resistant to the antibiotic so that it will no longer be effective in killing them.
none, that is a virus
Antibiotic sensitivity is an evaluation of how effective a given antibiotic is at killing the pathogen that grew in culture. When antibiotic resistance is a problem the sensitivity study helps clinicians choose the right medication.
An antibiotic.
The most effective antibiotic for treating a cat's UTI is usually amoxicillin or cephalexin. It is important to consult a veterinarian for proper diagnosis and prescription.
Tests can be performed to determine what type of antibiotic would be most effective against that particular bacteria.
Antibiotic B is more effective against Sarcina lutea, as it produced a larger zone of inhibition (18mm) compared to antibiotic A (17mm). A larger zone of inhibition indicates that antibiotic B has better inhibitory activity against the bacteria, resulting in better efficacy at controlling bacterial growth.
Hopefully, nothing. Unfortunately, after the drug is expired, the antibiotic and the inert carrier chemicals it is mixed into start to degrade. This degradation is unpredictable in the field and could do anything from rendering the antibiotic inert (ie, no longer an effective drug) to turning the antibiotic or one or more of the other chemicals into a potent toxin that could severely injure or kill the dog.