Ecologists are deeply concerned when there are invasive species in an ecosystem because they have the ability to colonize that particular ecosystem, disrupting its normal routine or functions. These species may arrive naturally through migration but human activity actually poses the greatest threat in bringing invasive species into different locations.
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Because its an educated guess witch means its just a guess then you try to get the data that might support thats why it comes first
Answer:
Cross the flies with the flies from another population
Explanation:
Inbreeding is the mating between the closely related individuals of a population. Inbreeding reduces the viability of the progeny over a generation since it increases homozygosity. When the flies of a small population interbred over generations, the increased homozygosity reduces the viability of the flies. To counteract it, one should mate these flies with the flies from another population. This would increase heterozygosity and thereby would increase the survival and fitness of the progeny.