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.

IntroductionWoodlice are invertebrates which are

found under stones and decaying wood.

When woodlice are in these damp and dark conditions they _____________which increases the likelihood of __________________ ____________•The behaviour of woodlice in light and dark

conditions can be investigated using a __________________________

Move slowlyRemaining in the preferredconditions

Remaining in preferred conditions

AimTo investigate the conditions which woodlice

prefer

Method1. Set up the choice chamber as shown in the diagram

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

Black paper

Light source

Hole in lidMoist filter paper

ResultsCondition Number of

Woodlice

Light

Dark

AnalysisDraw a bar graph of the results

Number of woodlice

Light Dark

Conditions

ConclusionWhich conditions do woodlice prefer?

Woodlice prefer dark conditions

EvaluationWhy were many woodlice used in the

experiment?

To make the results more reliable