How can an immune system defect affect susceptibility to infectious diseases?
It makes a person more susceptible to infectious diseases.
AQA GCSE Biology - Foundation (8461) · 4.2.2.5
Revise AQA GCSE Biology - Foundation (8461) specification point 4.2.2.5, Health issues, with free active-recall flashcards. Flip through the set or review every question and answer below.
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How can an immune system defect affect susceptibility to infectious diseases?
It makes a person more susceptible to infectious diseases.
What serious disease can viruses living in cells trigger?
Cancer.
What type of condition can an immune reaction initially caused by a pathogen trigger?
An allergy.
How can severe physical ill health affect mental health?
It can contribute to depression or another mental illness.
What is sampling?
Using a subset of a population to obtain information about the population as a whole.
What should be considered when selecting a sample for scientific or epidemiological data?
The population being studied; the sample should be as representative of it as possible.
How can random selection improve a sample?
It can reduce selection bias.
How does increasing sample size generally affect random variation?
It reduces the effect of random variation.
Does increasing sample size by itself correct a biased selection method?
No. A larger sample does not by itself correct biased selection.
What limitation applies to conclusions drawn from a sample?
They are estimates and may not describe the whole population exactly.