Sampling Techniques: Name One problem that occurs when biologists investigate where organisms live?
There are a large quantity of different organisms
1 of 10
Sampling Techniques:When biologists record the location of organisms from one species. What have they allocated?
Distribution
2 of 10
Sampling Techniques: What is the definition of population?
The number of organisms of a particular species in an area .
3 of 10
Sampling Techniques: What is the definition of community?
Different populations that live together in one area.
4 of 10
Why do we use quadrats ?
they are put on the ground to define an are
5 of 10
What are transect lines ?
they are tapes that are laid across an environment and you count the organisms that travel across the line.
6 of 10
What is a pooter?
a pooter is a container with a straw device used to suction small animals.
7 of 10
When enough readings are taken how are you able to determine the size of a population?
Count number of organisms from one sample and mark them all, recapture and count a second sample, then count the total of recaptures organisms. then multiply the two quatities of organisms and dived the total by the amount of recaptured marked ones
8 of 10
Name three ways in which you can ensure accurate sampling?
get a big sample, repeat readings, use the same equipment for each reading
9 of 10
Explain why you think that collecting data using sampling techniques gives only a rough estimate of population size?
they are rough estimates because the sampling is only done in a small amount of space and so samples cannot be 100% accurate
10 of 10
Other cards in this set
Card 2
Front
Sampling Techniques:When biologists record the location of organisms from one species. What have they allocated?
Back
Distribution
Card 3
Front
Sampling Techniques: What is the definition of population?
Back
Card 4
Front
Sampling Techniques: What is the definition of community?
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