Field Investigations- B Flashcards
(7 cards)
1
Q
What is the method for field investigations?
A
-Place a quadrat at a random location in the study area
-Count the number of the chosen organism inside the quadrat
-Repeat in several random locations (10+ times)
-Calculate mean number per quadrat
2
Q
Independent variable?
A
Location where quadrat is placed
3
Q
Dependent variable?
A
Number of organisms found in each quadrat
4
Q
Control variable?
A
Size of the quadrat
5
Q
Possible errors
A
Quadrat may not be placed randomly, introducing bias
6
Q
How to avoid these errors?
A
Use a random number generator to choose quadrat positions
7
Q
Key notes?
A
More samples taken=more reliable the results
