- The same person must take the measurements (Any 3) (MARK FIRST THREE ONLY) (3) 3. of sand 3.1.Habitat√/colour - Fur colour√ (Mark first TWO only) (2) (1) 3.2.100√ 3.3.- They used a large sample size√/200 models per habitat/ 200 models per fur colour/ 400 models in total (2) - Allowed enough time for predators to attack the models√ - Placed mice randomly in each 2 habitat√ Any (Mark first TWO only) (2) 3.4.The darker coloured models were the lighter attacked less√√ than coloured models OR The lighter coloured models were attacked than the darker more√√ coloured models 3.5.- More mice/78 models with dark fur colour were in the attacked√ beach habitat - as they were more the light visible√/less camouflaged against coloured sand - Fewer mice with light fur colour/26 models were in the attacked√ beach habitat - as they are camouflaged against the light less visible√ /well coloured sand (4)
- The same person must take the measurements (Any 3) (MARK FIRST THREE ONLY) (3) 3. 3.1.Habitat√/colour of sand - Fur colour√ (Mark first TWO only) (2) 3.2.100√ (1) 3.3.- They used a large sample size√/200 models per habitat/ 200 models per fur colour/ 400 models in total (2) - Allowed enough time for predators to attack the models√ - Placed mice randomly in each habitat√ Any 2 (Mark first TWO only) (2) 3.4.The darker coloured models were attacked less√√ than the lighter coloured models OR The lighter coloured models were attacked more√√ than the darker coloured models 3.5.- More mice/78 models with dark fur colour were attacked√ in the beach habitat - as they were more visible√/less camouflaged against the light coloured sand - Fewer mice with light fur colour/26 models were attacked√ in the beach habitat - as they are less visible√ /well camouflaged against the light coloured sand (4)
gr-12-life-sciences-trainer-s-manual-jan_2018.docx