Required Practical 10- Movement of animal in maze

Question 1

Why wipe inside of maze between trails?

Answer 1

remove any substances/ scent/ chemicals left by the maggots
- ensure maggot behaviour is not affected

Question 2

Describe how you might use a lamp to minimise the effect of changes in light intensity

Answer 2

light placed above so non-directional
- uniform light intensity so maggots do not have directional response

Question 3

Suggest how to determine what sample size to use in your investigation

Answer 3

-large enough to calculate a statistical test
-small enough to complete in sufficient time
-large enough so sample is representative

Question 4

Suggest why maggots are not used more than one in investigation

Answer 4

reduce stress for ethical practice
- prevent learned behaviour

Question 5

Suggest why you cannot conclude that behaviour of maggots is caused by changing conditions

Answer 5

may be due to other factors
- correlation does not equal causation