Practical 1
Learning objectives:
 By the end of the lesson you should be able to:
 Describe behavioural adaptations in animals using
woodlice as an example.
Introduction
 Woodlice are invertebrates which are found under
stones and decaying wood.
 When woodlice are in these damp and dark
conditions they _____________which
increases
Move slowly
Remaining in the preferred
the likelihood of __________________
conditions
____________
•The behaviour of woodlice in light and dark conditions
can be investigated using a
Remaining
in preferred conditions
__________________________
Aim
 To investigate the conditions which woodlice prefer
Method
1.
Set up the choice chamber as shown in the diagram
Light source
Black
paper
Hole in lid
Moist
filter
paper
2. Add ten/twenty woodlice through the hole in the lid
and count the number of woodlice in the uncovered
part of the chamber after five minutes
Results
Condition
Light
Dark
Number of Woodlice
Analysis
 Draw a bar graph of the results
Number of woodlice
Light
Conditions
Dark
Conclusion
 Which conditions do woodlice prefer?
 Woodlice prefer dark conditions
Evaluation
 Why were many woodlice used in the experiment?
 To make the results more reliable