Investigating ecosystems (Edexcel GCSE Biology Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the main aim of using quadrats in ecosystem investigations?
What is the main aim of using quadrats in ecosystem investigations?
To investigate organism distribution
What is a quadrat?
What is a quadrat?
A square frame enclosing a known area
Why is a random number generator used in quadrat sampling?
Why is a random number generator used in quadrat sampling?
To select random coordinates
What formula calculates mean organisms per quadrat?
What formula calculates mean organisms per quadrat?
Total organisms quadrats used
A m² quadrat has mean daisies. How many daisies per m²?
A m² quadrat has mean daisies. How many daisies per m²?
20 daisies per m²
What is a gradient in ecology?
What is a gradient in ecology?
A change in abiotic factors across habitat
What is a belt transect?
What is a belt transect?
Quadrats laid along a line
How are quadrats placed along a long belt transect?
How are quadrats placed along a long belt transect?
At regular intervals
Which data type can be collected using quadrats?
Which data type can be collected using quadrats?
Percentage cover
Which abiotic factor is measured using a light meter?
Which abiotic factor is measured using a light meter?
Light intensity