Two barnacles, Balanus and Chthamalus, can both survive on the lower rocks just above the low-tide line on the Scottish coast, but only Balanus actually does so, with Chthamalus adopting a higher zone. Which of the following best accounts for this niche separation?

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#Question id: 12116

#Section 4: Behavioural Ecology

Which of the following is not required for a behavioural trait to evolve by natural selection? 

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#Question id: 12118

#Section 4: Behavioural Ecology

According to Hamilton’s rule,

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#Question id: 12119

#Section 4: Behavioural Ecology

How  does inefficient transfer of energy among trophic  levels result in  the typically  high  endangerment status of many top predators?

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#Question id: 12121

#Section 4: Behavioural Ecology

Zoonotic disease

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#Question id: 12124

#Section 4: Behavioural Ecology

Which of the following describes the relationship between ants and acacia trees?

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#Question id: 12126

#Section 4: Behavioural Ecology

Which of the following describes a successional event in which one organism makes the environment more suitable for another organism?