Biology, 17.10.2020 08:01 xcoder3957

The male of a monogamous bird species is highly valued for its plumage, and many males are killed so that fashion designers can use their feathers on clothing and hats. The sex ratio of this species is now 89 percent female and 11 percent male. What are the long-term prospects for the species? How might this be different if the species were not monogamous?

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The term monogamous refers to a species that has only one mate at a time, as opposed to polygamous species which typically have more than one mate.

In the example given here, many males are being killed for their prized plumage. If this continues to happen, the species may die out. This is because once the female mates with a male, she will stay with him, mating for life. Many females will be left without a mate because the ratio of males to females is so low. And so, the number of chicks hatching will continue to drop.

This wouldn't be as big of a problem if the species were polygamous, because the males may have multiple mates at once (or in quick succession.) More eggs become fertilized this way, and the species may have had a chance for survival.

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Answer from: Quest

answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

explanation:

carbon 14 dating is used to determine the age of the sample by estimating the amount of carbon 14 present in the sample and then comparing it with a reference standard.carbon 14 is a isotope of carbon which is radioactive and unstable. carbon 14 is assimilated by all plants and animals throughout their life from carbon dioxide. however, one the organisms die they stop this assimilation and the carbon 14 content starts to decrease.by knowing how much of carbon 14 is left in an organism after his death, one can estimate the age of the organism. the materials whose age can be estimated by carbon 14 method are the organic compounds. however, some inorganic compounds such as aragonite shell can also be dated.however, if we consider the igneous rocks it is a non living component which never accumulated carbon 14 in it and thus, we cannot use carbon 14 dating method to estimate its age.

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