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Explain how the use of antibiotics might lead to a resistant strain of bacteria arising.

-Antibiotics kill individual bacterial cells. Random mutation of the DNA in a bacterial cell might confer antibiotic resistance to that bacterial cell. A cell with the resistance mutation is less likely to b...
MP
Answered by Mark P. Biology tutor
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Intergrate 15x^2 + 7

Using the intergarting rules, you would add a power then divide that new number to the coefficent so you would get 5x^3 and just add one x to the 7 and dont forget the c. So the end answer would be 5x^3 + 7x...
WJ
Answered by William J. Maths tutor
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Describe the key features of advertising in the USA in the 1920s?

One important feature of advertising in 1920s America was that it infiltrated all aspects of people’s lives. Visual forms of advertising could be seen on billboards and in magazines, newspapers, shop windows...
LH
Answered by Laura H. History tutor
48095 Views

How could I get more out of reading a poem?

Well, of course you will have been told about the various style devices of poetry, and what to look out for in studying a poem, but it is true that sometimes breaking a poem down into its component parts can...
SB
3849 Views

Describe how water is carried by the transpiration stream. (3 marks)

Transpiration is the loss of water from a plant by evaporation, which then diffuses out of the leaf via the stomata. It is important to note whether the student understands how and why water leaves the plant...
AS
Answered by Abishek S. Biology tutor
24401 Views