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Darya [45]
3 years ago
13

The effect of an antibiotic, antiseptic or disinfectant on bacteria growth is gauged by what measure? Group of answer choices

Biology
1 answer:
hichkok12 [17]3 years ago
8 0

Answer:

The correct answer id A. An area of no growth immediately around the application of substance called the "zone of inhibition" with the greater the zone size the greater the effect on the bacteria, ie the reduction or inhibition of growth.

Explanation:

When the effect of any antibiotic, antiseptic or disinfectant is to be checked then the substance is applied on some spots on agar plate and then spread plate culture technique is performed under aseptic technique.

Then after some hours of incubation area with bacterial growth and area without bacterial growth can be seen on the agar plate. The area where no bacterial growth occurs is called the zone of inhibition.

More the zone of inhibition produced by the substance more will be its effectiveness against the bacteria that means it can inhibit the growth of more bacteria. So, the right answer is A.  

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A magnifying glass is an example of which type of microscope?
marishachu [46]

Answer:

A simple microscope

Explanation:

Because it only has a single lens

6 0
3 years ago
Which molecule are the condons found on?
patriot [66]

heir function is to base pair with the codon on a strand of mRNA during translation. This action ensures that the correct amino acid will be added to the growing polypeptide chain. A tRNA molecule will enter the ribosome bound to an amino acid.

4 0
3 years ago
Which cells of the nervous system protect the cns by phagocytosing viruses, microorganisms, and tumor cells?
alexandr402 [8]
The correct answer is microglia.
<span>Microglia is glial cells found in the central nervous system with the protective role. Because they are the resident macrophage cells, they act as the first and main form of active immune defense. Microglia is constantly cleaning the CNS for plaques, damaged or unnecessary neurons, and infectious agents, like viruses or other microorganisms.</span>
3 0
3 years ago
Which geological process directly forms beaches on the shore of a bay?
Andrew [12]

Answer:

erosion, transportation, and deposition.

Explanation:

i took the topic and i remembered. please like and rate my answer. brainleast please?

3 0
3 years ago
Use the information below to answer the following question(s). In a survey, the rate of heavy smokers was reported as 270 per 10
Eddi Din [679]

The probability that neither of them is a heavy smoker is 0.53 or 53%

<h3>What is genetic probability?</h3>

Probability serves to mathematically estimate the possibility of events that happen by chance, that is, as a matter of luck.

In this case:

Probability that selected one is heavy smoker is:

p=270/1000=0.27

Number of individuals selected  is 2 and We know that:

P(X=x)=nc_x(1-p)^{n-x}(p)^x

We need to prove that X=0:

P(X=0)=nc_0(1-0.27)^{2-0}(0.27)^0

P=0.5329

See more about genetic probability at brainly.com/question/851793

#SPJ1

3 0
2 years ago
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