AO1: Predators can sleep more whilst prey have to sleep less. This refers to which evolutionary explanation?
Predator Avoidance
1 of 9
AO1: Sleep ensures animals stay still when they have nothing else to do. Sleeping more is the best way to pass on genes due to it being safer to be asleep.This refers to which evolutionary explanation?
Waste of Time
2 of 9
AO1: Herbivores eat food with low nutrient content so have to eat more. Carnivores eat food with a high nutrient content so don't have to eat as often. This effects how long they can sleep for. This refers to which evolutionary explanation?
Foraging Requirements
3 of 9
AO2: Zepellin an Rechtstaffen (1974) found that small animals with a higher metabolic rate sleep more than large animals. This supports?
the energy conservation explanation
4 of 9
AO2: Capellini (2008) looked at previous studies with standardised procedures and found that smaller animals with higher metabolic rates sleep less. This could be due to?
Foraging requirements
5 of 9
AO2: energy levels only drop in NREM sleep, not in REM sleep. This discredits which explanation?
the energy conservation explanation
6 of 9
AO2: Capellini (2008) looked at previous studies with standardised procedures and found that animals who sleep in exposed positions sleep less. This supports which explanation?
predator avoidance
7 of 9
AO2: An alternative approach by Horne (1998) combines the evolutionary and restorative explanations. It suggests:
There is a core and optional sleep: the core sleep is mainly SWS and is vital for processes to work and optional sleep is mainly REM and is dispensable.
8 of 9
AO2: general support for the evolutionary approach comes from who that found mammals with similar genes have similar sleep patterns
Capellini (2008)
9 of 9
Other cards in this set
Card 2
Front
AO1: Sleep ensures animals stay still when they have nothing else to do. Sleeping more is the best way to pass on genes due to it being safer to be asleep.This refers to which evolutionary explanation?
Back
Waste of Time
Card 3
Front
AO1: Herbivores eat food with low nutrient content so have to eat more. Carnivores eat food with a high nutrient content so don't have to eat as often. This effects how long they can sleep for. This refers to which evolutionary explanation?
Back
Card 4
Front
AO2: Zepellin an Rechtstaffen (1974) found that small animals with a higher metabolic rate sleep more than large animals. This supports?
Back
Card 5
Front
AO2: Capellini (2008) looked at previous studies with standardised procedures and found that smaller animals with higher metabolic rates sleep less. This could be due to?
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