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faust18 [17]
4 years ago
14

PLEASE HELP

Biology
1 answer:
Stolb23 [73]4 years ago
7 0

The bacteria which had mutation became resistant to the antibiotic and survived and keeps on increasing, promoting natural selection.

Explanation:

The bacteria rapidly divide, the chances of mutation in the gene increases manifold.

The strains of bacteria causing tuberculosis and staph infection got mutated at DNA level such that they became resistant to antibiotics when tested those susceptible did not survive. These mutations were not harmful to bacteria and the resultant bacteria survived.

These bacteria which survived and proliferated as the environment was in their favour.

Thus, Darwin's Theory of Natural Selection is acceptable here as it says if a mutation is occurring towards the increase in population, they will be selected ones.

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Suppose earth landmasses someday all move together. Describe the changes that will occur in earths oceans in earths land masses.
Klio2033 [76]
The oceans will get wider as the continents are brought together to each other as a result of subduction zones. Most continents and microcontinents will collide with Eurasia. Eurasia could then collide with North America, when Eurasia shifts to the east and North America to the west. Australia could join Southeast Asia. As a result, Pacific ocean will grow wider and merge with all the other oceans, whereas all the earth's landmasses are combined, as a result of subduction.


7 0
3 years ago
Which does not cause DNA mutations?
Nikolay [14]
C i am guessing but i hope this helps
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3 years ago
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How did richard neumann and vincenzo beltrone feel about the us government action during wartime?
galben [10]

Richard Neumann and Vincenzo Beltrone delay bad about the government during wartime as their freedoms weren't enjoyed.

<h3>What is freedom?</h3>

It should be noted that freedom simply means the rights that are accorded to an individual

During this period, there were four essential freedoms which are:

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During wartime, the fear was in the heart of millions of people. This was illustrated by both men.

Learn more about freedom on:

brainly.com/question/13273450

7 0
2 years ago
During the Precambrian, Earth's first atmosphere is theorized to have been composed of a poisonous mixture of helium and hydroge
Alexxx [7]

Answer:

Yes.

Explanation:

Yes, early Earth's atmosphere was formed from the poisonous mixture of helium and hydrogen gases. But with the passage of time when Earth's crust began to cool, the composition of the atmosphere changed and carbondioxide and water concentration in the atmosphere increases due to carbondioxide gas emission from the volcanoes and evaporation of water from water bodies present on the surface of earth.

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The two basic and opposite actions that account for all muscle movements are contraction and extension.
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3 years ago
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