WorksheetsBiodiversity and how to investigate it
Total questions: 22
Worksheet time: 11mins
What is defined as: the number and variety of living things to be found in the world, in an ecosystem or in a habitat
Biodiversity
Community
Ecosystem
Habitat
Population
What is defined as: populations of different species in an ecosystem?
Biodiversity
Community
Ecosystem
Habitat
Population
What is defined as: all the living organisms and all the non-living components in a specific area, and their interactions
Biodiversity
Community
Ecosystem
Habitat
Population
What is defined as: the place where an organism or population lives?
Biodiversity
Community
Ecosystem
Habitat
Population
What is defined as: all the organisms of one species in a habitat?
Biodiversity
Community
Ecosystem
Habitat
Population
Which community has greater species richness?
Community A
Community B
They both have the same species richness
Which community has greater species diversity?
Community A
Community B
They both have the same species diversity
Which is the correct equation for the index of diversity?
D = (n(n-1)) / (ΣN(N-1))
D = (Σn(n-1)) / (N(N-1))
D = (N(N-1)) / (Σn(n-1))
D = (ΣN(N-1)) / (n(n-1))
Which of these is a factor that reduces biodiversity?
Replanting hedgerows
Organic fertilisers
Maintaining ponds
Monocultures
Which of these is a conservation technique for increasing biodiversity?
Using organic fertilisers
Making larger fields
Grazing land thoroughly
Using pest-specific fertilisers
Which image represents random sampling?
A
B
C
D
Why do we use random (or systematic) sampling?
To make it more reproducible by collecting more data
To make the experimental design easier
To avoid bias
To show a better spread of the data
What is the mean of these data?
2 4 9 3 5 2 4 2 5
2
4
7
9
What is the median of these data?
2 4 9 3 5 2 4 2 5
2
4
7
9
What is the mode of these data?
2 4 9 3 5 2 4 2 5
2
4
7
9
What is the range of these data?
2 4 9 3 5 2 4 2 5
2
4
7
9
Which of these groups is significantly different from the others?
Group 1
Group 2
Group 3
None of them is significantly different from the others
We can't tell from this graph
Which are uses of standard deviation?
To tell you the range of the data
To give you an idea of the spread of data
To tell you more about the mean
To help decide whether data are significantly different from one another
Which statistical test would you use to compare your observed frequency with an expected frequency?
Chi squared
Correlation test
Student's t-test
Standard deviation
Which statistical test would you use to test for a significant correlation between two numeric variables?
Chi squared
Correlation coefficient
Student's t-test
Standard deviation
Which statistical test would you use to compare the means of two sets of data?
Chi squared
Correlation coefficient
Student's t-test
Standard deviation
What would you use to get an idea of the spread of a set of data?
Chi squared
Correlation coefficient
Student's t-test
Standard deviation
