1. Required Practical 9: Key term What is a quadrat?4
Key term
Habitat
Distribution
Species
Transect 5
How do you estimate ‘percentage cover’ in a quadrat?
When is this useful? 6
List examples of abiotic factors that may affect distribution of a species: 4
Required Practical 9:
Using sampling techniques to estimate the distribution and population of a common species
Describe how you could use random sampling to estimate the number of daisies in a field:
How would you test the idea ‘as light intensity increases, so does the height of plants’ using the equipment below: 5
How can you ensure your field work data is ‘valid’?
Quadrat Grid Coordinates Mean Total area 8
What is a quadrat?
How do you calculate:
The Mean:
The Mode:
The Median: 5 7