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Relationships, Sheet 4 08.04.2014

Discuss evolutionary explanations of
parent investment (24 marks)
AO1: AO2:
Bateman's Principle: Females almost The Clown Shrimp: Rather than mating
always invest more energy into producing with as many females as possible, they
offspring than males. A single male can will spend many weeks diligently guarding…

Page 2

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Relationships, Sheet 4 08.04.2014

Aspects of human behaviour can cause
difficulties e.g. how can evolutionary
explanations account for women having
Most evidence comes from
surveys/statistics of lower animal species.
These methods are problematic and often
not very scientific.
Generating universal rules of behaviour
from such evidence is flawed science.


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