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Anon25 [30]
3 years ago
10

A new and effective antibiotic becomes widely used for a particular species of bacteria. After some time, an antibiotic-resistan

t strain of the bacteria becomes prevalent. Which mechanism explains this phenomenon?
Biology
1 answer:
s2008m [1.1K]3 years ago
4 0
Antibiotic resistance happens when an antibiotic lost its ability in controlling or killing bacterial growth. At this moment the bacteria are already resistant to the antibiotic and are multiplying even though the drug is present. This is a natural phenomenon.
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Answers to definition
AlladinOne [14]

Answer:

Explanation:

Species: a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.

Population: a particular group or type of people or animals living in a place.

Gene pool: the stock of different genes in an interbreeding population.

Mutations: the changing of the structure of a gene, resulting in a variant form that may be transmitted to subsequent generations, caused by the alteration of single base units in DNA, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes.

Lateral Gene Transfer: the movement of genetic material between unicellular and/or multicellular organisms other than by the transmission of DNA from parent to offspring (reproduction).

Single-gene Traits: when a trait is linked to one gene-pair that consists of two alleles.

Polygenic Traits: is one whose phenotype is influenced by more than one gene.

3 0
3 years ago
How many neutrons does element X have if its atomic number is 36 and its mass number is 91?
Viefleur [7K]
55 is the answer
!!!!!!!!!!!!!!!!!!!!!!!!!!
5 0
2 years ago
Which choice describes DNA after replication has taken place
soldier1979 [14.2K]
After DNA replication has taken place, two molecules, each with one original and new strand is formed. This supports the idea of DNA replication.
6 0
3 years ago
What does topography show?
muminat

Answer:

I. The landforms such as valleys, volcanoes, hill, plateau, etc., in a geographical area or region.

II. The shape of the land.

Explanation:

In Geography, topography can be defined as the shape and structure of the Earth surface. Thus, a topographic map is used to graphically describe this features.

A topographic map can be defined as an accurate and detailed graphical (two-dimensional) description, representation or records of both natural and man-made (artificial) features on the surface of the Earth.

A topographic map is a two-dimensional model that uses contour lines to represent points of equal elevation above sea level such as mountains, hills, plains, valley etc.

The two-dimensional model of a topographic map graphically represents the height of a mount and the steepness of a slope through the use of contour lines.

Contours can be defined imaginary lines used for connecting locations that are having similar elevations on the Earth's surface.

Hence,a topography show two (2) main things and these includes;

I. The landforms such as valleys, volcanoes, hill, plateau, etc., in a geographical area or region.

II. The shape of the land.

8 0
3 years ago
What structures work in antagonistic pairs to move bones?
Olegator [25]

Answer

Option C - Skeletal Muscles

Explanation

Antagonistic pairs are the muscles that are functionally opposite, if one produces flexion, then the other's primary action is an extension. Skeletal muscles work in pairs to move a bone so that the muscles can function properly. They contract the bone making nerves deliver a message to the brain. For example. Biceps and triceps. The lower arm is moved upwards when the biceps muscle contracts and the triceps muscle is relaxed and vice versa.

4 0
3 years ago
Read 2 more answers
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