Sorry, your question is not worded clearly enough to be answerable- can you make it more understandable?
Population
An ecosystem is defined as all the various species living in the same area. There are many different ecosystems across the world.
A population includes all members of a defined group. A sample, on the other hand, is just a part of the population.
Fauna
The term for all members of a defined group is "population." In statistics, a population encompasses all individuals or items that share a common characteristic, which can be studied or analyzed. This definition can apply to various fields, such as biology, sociology, and market research.
No, it assumes there are clearly defined subgroups in your population like men and women, members of the same family, ...
A sampling frame is defined as the complete list or a map that contains all the "n" sampling units in a population
The ED50 defined as the dose required to produce a defined therapeutic response in 50% of the population.
the part of the population a researcher is interested in researching
civilization
A population is always of the same species, but a species may consist of more than one population. Generally, population is defined as a group of organisms of one species that interbreed and live in the same place at the same time. Species can be defined in different ways, either by looking at the similarities between organisms, or by looking at the interbreeding frequency (in a situation in which populations were to be put in the same habitat). All in all, species is a useful label for classification, but not so useful for constructing biological models.
This term can mean either a defined collection of people or the number of people in a defined collection. For example:The people in China constitute a human population.35,000,000 is the approximate human population of Canada.