Page 53 - CB1.3 Genetic Varation sciPAD

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CB 1.3 GENETIC VARIATION
GENETICS OF POPULATIONS
4. Distinguish between a ‘structural’ and a ‘behavioural’ adaptation. 





5. Classify the adaptations of the North Island brown kiwi as structural (S), behavioural (B) or
physiological (P).
Adaptation S B P
Long beak
Monogamous
Powerful legs and claws
Nostrils at end of beak
Able to incubate an egg without eating
Nocturnal
Very good sense of smell
Aggressively defends eggs and chicks
Warm blooded
6. The photographs below show a tūī feeding on the nectar found in harakeke flowers.
(a) Use the photographs to describe two adaptations of the tūī and outline how they
help the tūī survive in its habitat.
Adaptation: 
How it helps the tūī survive: 

Adaptation: 
How it helps the tūī survive: 

(b) Manu tute (‘manu’ = bird, ‘tute’ = to drive away or repel by force) is a Māori term
used to describe tūī driving other birds away from plants they are feeding on.
Classify this type of adaptation.
(c) Use the photographs to describe a harakeke adaptation that has evolved to
ensure tūī pick up pollen when they feed on the flowers. 

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