The genetic relatedness (r) of an individual to brother is 0.50, according to Hamilton’s Rule, only if the fitness benefit is

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#Question id: 10854

#Section 1: Ecology

Which of the following is an example of a hemiparasite?

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#Question id: 4930

#Section 2: Evolution

Which of the following is the correct sequence of events in the origin of life?

I. Formation of protocells

II. Synthesis of organic monomers

III. Synthesis of organic polymers

IV. Formation of DNA-based genetic systems

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#Question id: 12374

#Section 1: Ecology

The process in which pioneer species colonize a bare substrate such as rock, sand, or glacial till is known as

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#Question id: 12140

#Section 1: Ecology

In some animal species, social organization involves the establishment of a system of ordered social rank instead of the occupancy of territories. Such a system of ordered social rank is referred to as a __________. 

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#Question id: 4598

#Section 2: Evolution

Fossils of Thrinaxodon, a species that lived during the Triassic period, have been found in both South Africa and Antarctica. Thrinaxodon had a reptile-like skeleton and laid eggs, but small depressions on the front of its skull suggest it had whiskers and, therefore, fur. Thrinaxodon may have been warm-blooded. The fossils of Thrinaxodon are consistent with the hypothesis that ________.