The answer is D - Private families supported large armies
Answer:Native specie are species that naturally lives in an ecosystem.They are usually assisted by new species.
Non native specie;These are species that exist outside their natural range.They usually exist where they have not naturally occured and they don't hinder the presence of other specie in the ecosystem.
Indicators are organisms whose existence is largely dependent on the condition of the ecosystem.
Key stone specie;These species have significant impact on their eco system.Non existence of these species can cause significant regress In an ecosystem.
Causes of decline of the listed species.
1)Pathogens and pest.
2)Human causes.
3)Loss of habitat.
4)Loss of pollinators and other plant partners.
Owl as an indicator specie has declined.
Explanation:
Answer: The target population is actually seen as the population
Explanation:
Assessible population are mostly estimates around the main population but not the actual population. They are the population used by researchers for their study. While a target population is the total group of people where the sample of population can be drawn. It is seen that the target population is simply the population.