AQA GCSE Biology Using Quadrats Flashcards
(7 cards)
1
Q
State two ways you can study the distribution of an organism
A
. Measure how common an organism is in two sample areas
. Study how the distribution changes across an area
2
Q
What is the independent variable?
A
The location or area
3
Q
What is the dependent variable?
A
Distribution of small organisms
4
Q
State two control variables
A
. Humidity
. Quadrat size
5
Q
State two hazards and precautions
A
. Exposure to insects- Wear gloves, long sleeves, long pants
. Soil contains bacteria and other harmful pathogens- Wear gloves
6
Q
What is the purpose of this practical?
A
To study the distribution of small organisms
7
Q
What is a quadrat?
A
A square frame enclosing a known area. Its used to study the distribution of organisms
