Do you know how to sample ecosystems?
Environmental Sampling Quiz
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Question 1 of 11Question 1
What does abundance measure?
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Question 2 of 11Question 2
Which square instrument do we use for randomly sampling population sizes?
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Question 3 of 11Question 3
Complete the equation used to calculate population size: population size = ………….. x total size of it habitat / total area of quadrats
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Question 4 of 11Question 4
Which are the two kinds of sampling we normally use?
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Question 5 of 11Question 5
We sometimes use a transect to perform systematic sampling. This involves which of the following?
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Question 6 of 11Question 6
Which of the following can we use to investigate the effect of abiotic factors on the distribution of organisms?
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Question 7 of 11Question 7
What do we mean by the distribution of organisms?
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Question 8 of 11Question 8
How can we increase the accuracy of abundance estimates?
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Question 9 of 11Question 9
Why do we use systematic or random sampling of an area to determine the distribution or abundance of organisms?
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Question 10 of 11Question 10
In a scientific investigation, you and two others randomly sample a rocky shore using quadrats. You find that on average there are 2 crabs per quadrat and the whole shore would be covered by 150 quadrats. Estimate how many crabs are on the whole shore.
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Question 11 of 11Question 11
Sometimes it is not possible to measure the number of organisms in a transect, for example when measuring the distribution of plants. In this case we use an alternative measure called what?
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