If only 20 males and 20 female grizzlies exist today, but only 10 of the males and 6 female breed, what are effective population size?

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#Question id: 11778

#Section 2: Evolution

Asexually-produced offspring, descended from the same parent and bearing the same genotype, constitute a

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#Question id: 11928

#Section 2: Evolution

In most species, deviations from equal proportions of males and females in a sexually-reproducing population will confer an advantage to genotypes that: 

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#Question id: 11929

#Section 2: Evolution

This mating system is thse one most commonly seen in animals. Males attempt to mate with as many females as possible and rarely form a lasting pair bond. 

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#Question id: 11930

#Section 2: Evolution

When females are equally successful in raising young on monogamous and polygynous male territories, the population is said to have reached the: 

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#Question id: 11931

#Section 2: Evolution

Sexual dimorphism may arise from: 

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#Question id: 11932

#Section 2: Evolution

According to the hamilton-zuk hypothesis, a female bird is most likely to select a male as a mate that has: