Do you know how to sample ecosystems?
Environmental Sampling Quiz
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What does abundance measure?CorrectIncorrect
Which square instrument do we use for randomly sampling population sizes?CorrectIncorrect
Complete the equation used to calculate population size: population size = ………….. x total size of it habitat / total area of quadratsCorrectIncorrect
Which are the two kinds of sampling we normally use?CorrectIncorrect
We sometimes use a transect to perform systematic sampling. This involves which of the following?CorrectIncorrect
Which of the following can we use to investigate the effect of abiotic factors on the distribution of organisms?CorrectIncorrect
What do we mean by the distribution of organisms?CorrectIncorrect
How can we increase the accuracy of abundance estimates?CorrectIncorrect
Why do we use systematic or random sampling of an area to determine the distribution or abundance of organisms?CorrectIncorrect
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.CorrectIncorrect
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?CorrectIncorrect