using quadrats

Question 1

method

Answer 1

1. place the quadrat randomly on the ground within the first sample area
2. count all the organisms within the quadrat
3. repeat as many times as possible within the first sample area
4. work out the mean number or organisms per quadrat within the first sample area
5. repeat steps 1-4 in the second sample area
6. compare the two means

Question 2

why would you randomly throw the quadrat on the ground?

Answer 2

to avoid any biasness you might have and obtain accurate results

Question 3

random sampling

Answer 3

a sampling technique in which each sample has the same probability of being chosen

Question 4

total population

Answer 4

total area/area sampled x no. organisms

Question 5

how can you make the practical more accurate?

Answer 5

repeat more times, increase number of quadrat throws to cover a greater percentage of area