Required Practical: Ecosystems (OCR GCSE Biology A, Combined (Gateway Science Suite)): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is a transect in ecological sampling?
What is a transect in ecological sampling?
A line along which measurements are taken at intervals
What is the standard size of a quadrat frame?
What is the standard size of a quadrat frame?
1m x 1m
What does 'distribution' mean in ecology?
What does 'distribution' mean in ecology?
The way organisms are spread across an area
What does 'abundance' mean?
What does 'abundance' mean?
Number of individuals in a given area
What is the purpose of using a transect?
What is the purpose of using a transect?
Study how distribution changes across habitat
How should quadrats be placed along a transect?
How should quadrats be placed along a transect?
At regular intervals (e.g., every 2 metres)
Why should quadrats be placed randomly when estimating population?
Why should quadrats be placed randomly when estimating population?
To avoid bias
Why take multiple samples when using quadrats?
Why take multiple samples when using quadrats?
To get a reliable average
What is the 'mean' in ecological data analysis?
What is the 'mean' in ecological data analysis?
Average number of organisms per quadrat
What is the 'median' in data analysis?
What is the 'median' in data analysis?
Middle value when numbers are ordered
Which environmental factors may affect organism distribution?
Which environmental factors may affect organism distribution?
Light, temperature, and moisture
How can this practical help conservation efforts?
How can this practical help conservation efforts?
Provides data on species distribution