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For a named country which you have studied, describe the problems caused by an ageing population.

Name of country: Japan 

Japan has a population of 127 million and roughly 23% are over the age of 65 and this huge proportion can prove to be problematic. In general, the elderly require more expen...

NC
Answered by Natasha C. Geography tutor
7649 Views

The development of palm oil plantations in Sumatra has removed areas of forest that provided the habitat for tigers. Explain why planting strips of trees to link the forests would have an effect on the frequency of genetic disorders in these tigers.

Areas of trees linking the remaining patches of forest will mean that the populations of tigers are no longer geogrpahically isolated. therefore they will be able to breed with a larger gene pool and the ...

ES
Answered by Ella S. Biology tutor
2728 Views

Find the indefinite integral of ( 32/(x^3) + bx) over x for some constant b.

To integrate (32/ x3 + bx) over x we can integrate each part separately. This is because addition of two integrals is the same as integrating the total of the elements. 

So we integrate ...

BO
Answered by Becky O. Maths tutor
2859 Views

How do viruses cause disease?

A virus is an example of a pathogen. Pathogens also include bacteria, fungi or protists, and all are capable of causing infectious disease. Viruses are very small, much smaller than bacteria. They consist...

KG
Answered by Kavindi G. Biology tutor
11490 Views

Explain how changes to the guard cells on the warm day help the plant to survive

the points you need to get accross here are;

-on a warm day, there will be more evaporation from the plant,

-therefore the guard cells will close around the stomata so that the plant will no...

ES
Answered by Ella S. Biology tutor
14857 Views

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