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Finding food. Chris Elliott Room: L0/016 Tel: 8654 E-mail : [email protected]. Finding food. Aim: how do animals recognise food? Use simple invertebrates to work on this question Use your ingenuity to work on this question. Fruit flies like a banana. So how do they find it?. - PowerPoint PPT Presentation
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Finding foodChris ElliottRoom: L0/016Tel: 8654E-mail : [email protected]
Finding food Aim: how do animals
recognise food?
Use simple invertebrates to work on this question
Use your ingenuity to work on this question
Fruit flies like a banana So how do they find it?
Food is an active choice?
Crickets
Cockroaches
Fruit fly
Locusts
Passive choice These animals are fixed or slow moving
Can’t choose which way to go Have to take what comes within their
range
What experiments? might be possible?
How far away? Which sensory system(s)?
Apple in different colours
What experiments? might be
possible? How long do
they remember? How narrow a
range of food? What about
unfamiliar foods?
Soft or hard food?
What techniques? Watching?
See what happens; decide on your question(s)
refine your approach narrow the question
Ask what hypothesis you are testing? multiple stages to your experiment how many replicates?
Experimental techniques
these might include Video measurements? Mazes? Choice experiments? Time trials?
Safety risk assessment?
What animals? Snails
Pond, garden Insects
Drosophila, Locusts, Cockroaches, crickets
Aim: Design a simple experiment
It must be simple Focus the question
Its your choice! Gain some results
Draw some conclusions Make a poster
