sampling organisms Flashcards
1
Q
2 ways to do sampling
A
random sampling
sampling along a transect
2
Q
what is random sampling used to do
A
compare the number of organisms in different areas
3
Q
what piece of apparatus do you use when doing random sampling
A
a quadrat
wooden square- count the number of organisms inside the quadrat
4
Q
what can random sampling be used to sample
A
plants
slow moving animals
5
Q
how to get random numbers for sampling
A
random number generator
pick numbers out of a hat
6
Q
equation to estimate the total population size
A
total population size = total area/ area sampled x number of organisms counted in the sample
7
Q
what is a transect
A
a line made from a piece of rope or tape measure
use a quadrat to count the number of organisms at regular intervals on the transect
