Required Practical: Ecosystems (AQA GCSE Biology): 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 where measurements are taken at regular intervals
What is the usual size of a quadrat frame?
What is the usual size of a quadrat frame?
1m x 1m
What does 'abundance' mean in ecology?
What does 'abundance' mean in ecology?
The number of individuals in a given area
What does 'distribution' refer to?
What does 'distribution' refer to?
The way organisms are spread across an area
What is the main purpose of using transects?
What is the main purpose of using transects?
To study 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 in sampling?
Why should quadrats be placed randomly in sampling?
To avoid bias in the sample
Why is it important to use multiple quadrat samples?
Why is it important to use multiple quadrat samples?
To get a reliable average
What is the 'mean' in data analysis?
What is the 'mean' in data analysis?
The average number of organisms per quadrat
What is the 'mode' in ecological data analysis?
What is the 'mode' in ecological data analysis?
The most common number found in quadrats
Which factors may affect organism distribution?
Which factors may affect organism distribution?
Light, temperature, and moisture
How can this practical help conservation?
How can this practical help conservation?
By providing data on species distribution