Fieldwork techniques (AQA GCSE Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What two main things do fieldwork techniques help scientists measure?
What two main things do fieldwork techniques help scientists measure?
Abundance and distribution
What does abundance mean in fieldwork?
What does abundance mean in fieldwork?
How many organisms live in an area
What is a quadrat?
What is a quadrat?
A square frame used for sampling
Why should quadrats be placed randomly rather than in a pattern?
Why should quadrats be placed randomly rather than in a pattern?
To prevent bias in results
Which organisms are quadrats most useful for studying?
Which organisms are quadrats most useful for studying?
Plants and slow-moving animals
What is the first step when using quadrats to estimate population size?
What is the first step when using quadrats to estimate population size?
Measure the total area to study
In the daisy example, what is the mean number of daisies per quadrat?
In the daisy example, what is the mean number of daisies per quadrat?
In the daisy example, what is the estimated total population for the whole field?
In the daisy example, what is the estimated total population for the whole field?
daisies
What is the mode in a set of data?
What is the mode in a set of data?
The value that appears most often
For the data 0,0,0,1,1,2,2,3,4,4, what is the median value?
For the data 0,0,0,1,1,2,2,3,4,4, what is the median value?
What is a transect?
What is a transect?
A line with quadrats at regular intervals
When are transects particularly useful?
When are transects particularly useful?
Studying changes between habitats