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Worksheets2. Biodiversity
Total questions: 10
Worksheet time: 4mins
What is the definition of biodiversity?
The variety of different species in an area
The number of individuals of a particular species in an area
The variety of different species and the number of individuals within each species
The variety of different species and the number of individuals within each species in an area
Which of the following is not a reason for protecting biodiversity?
Well-being
Source of foods
Source of medicines
Global warming
Which of the following is not a method for conserving biodiversity?
Captive breeding programmes
National parks
Seed banks
Zoos
What is the area of a quadrat if each side is 0.5m?
25m2
5m2
2.5m2
0.25m2
Why are quadrats placed randomly?
To ensure repeatability
To improve accuracy
To avoid bias
To ensure validity of results
If a field has an area of 40m2 , a quadrat has an area of 1m2 , and the average number of daisies in each quadrat is 2, what is the estimated number of daisies in the field?
8
80
800
8000
What is the term for using one species to control the numbers of another?
Biological control
Chemical control
Predation
What method would you use to monitor the change in distribution of species due to changes in environmental conditions?
Random quadrats
Line transect
Capture-recapture
What do you call a species that has been brought in from another country?
Foreign species
Invasive species
Alien species
Tourist species
What must you assume when estimating population numbers using the capture-recapture method?
There has been immigration
There has been no immigration
Some of the population have died
There have been births within the population
