Certain antibiotics are no longer effective against the bacteria that they used to kill. Which of the following best explains why certain antibiotics are no longer effective?
The number of bacteria is now greater than what the antibiotic can kill
The antibiotic has become weaker over time
Bacteria that were resistant to the antibiotic survived to reproduce
Changes in the environment made the antibiotic ineffective
Answers: 1
Physics, 22.06.2019 04:30, elizabethseoane1829
You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?
Answers: 2
Physics, 22.06.2019 15:50, ksiandua07
An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )
Answers: 1
Certain antibiotics are no longer effective against the bacteria that they used to kill. Which of th...
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