WorksheetsInterdependence
Total questions: 13
Worksheet time: 9mins
What usually happens to the accuracy of an estimate of population size as the number of fish caught increases?
The estimate is usually more accurate.
The estimate is usually less accurate.
The accuracy of the estimate will not change.
The estimate is most accurate when the number of fish caught is 50% of the total population.
What is a suitable way to sample plants in a field?
Counting Random Plants
Using Quadrates
Using Pooters
Using Pitfall traps
What is a quadrat?
A type of bike
A sampling tool typically of one square metre, used to sample plants
A sampling tool typically of one square metre, used to sample animals
A type of hat
Which of the following is true about quadrats?
quadrats should be placed randomly so that a representative sample is taken
you should look at the results from several quadrats in an area to reduce the effect of an unusual distribution
the results are more reliable when you look at the results from many quadrats
All the above are true
What is the best way to place a quadrat?
Place it where you like
Divide the sample area into a grid and use a random number generator to choose a square.
Throw the quadrate so it's random
Divide the sample area into a grid and choose a square.
