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tiny-mole [99]
3 years ago
7

A current challenge for doctors involves the bacterial strain Clostridioides difficile, which no longer responds to traditional

antibiotic treatments.
Which of the following best explains why this particular strain of bacteria is resistant to antibiotic treatment?

A. Mutations creating new alleles occur more frequently in this species of bacteria than in other species.

B. Crossing over during meiosis increased genetic variability in the bacteria.

C. The bacteria have high genetic variability and high reproductive rates.

D. The bacteria are able to recognize and destroy the antibiotics by breaking them down extracellularly
Biology
1 answer:
yawa3891 [41]3 years ago
5 0

Answer:

C. The bacteria have high genetic variability and high reproductive rates.

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Density is mass per unit of volume. Which pair of lab instruments would a student use to measure the density of seawater?
expeople1 [14]

Answer

a balance and a graduated cylinder

Explanation

Density is mass per unit and it is property  characteristic of a substance. The arrangement of the mass of atoms and their size is what determines the the density of a substance.

For a student to measure the density of seawater  he/she is required to use a balance and a graduated cylinder where a balance will be used to measure the mass of the mineral sample  and then a graduated cylinder to determine the volume.


7 0
3 years ago
Read 2 more answers
Why is VRBA (Violet red bile agar) only pasteurized rather than sterilized prior to use?
Georgia [21]

Answer:

Explanation:

This is because Violet and red bike is only a selective medium that detect and analyse lactose coliform microorganisms that cause fermentation and this is present in diary products like milk. This is milk use for microbiological analysis of milk because of it ability to detect lactose which is a milk sugar. There fore it cannot be use for sterilization.

4 0
3 years ago
The project that you are working on was initiated in response to the growing threat of antibiotic resistance in both hospital an
adelina 88 [10]

Answer:

Decrease the effectiveness of this process.

Explanation:

Resistance emerges is an essential part of this process because this resistance causes decrease in the effectiveness of the drugs. If this resistance is not a part of this process, the microbes get resistance from the drugs which  leads to lower the effectiveness of antimicrobial disease or infection so that's why resistance is considered as the essential part of this process of project.

5 0
3 years ago
A cross section of a seed is shown.
cluponka [151]

Answer:x is embryo :D

Explanation:

7 0
3 years ago
In what places have bacteria resistant to antibiotics caused particular problems?
GenaCL600 [577]

Answer:

Bacteria that are non-controlled or destroyed by antibiotics are antibiotic-resistant bacteria. In the presence of an antibiotic, they will live and even develop. At least certain antibiotics can become immune to most infection-causing bacteria.

Explanation:

Some bacteria are immune to such antibiotics naturally. In most species found within the human digestive system, for example, benzylpenicillin has very little impact.

5 0
3 years ago
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