Answer the following question given this paragraph: 

CHAPTER SUMMARY 45.1 Population Demography Populations are individuals of a species that live in a particular habitat. Ecologists measure characteristics of populations: size, density, dispersion pattern, age structure, and sex ratio. Life tables are useful to calculate life expectancies of individual population members. Survivorship curves show the number of individuals surviving at each age interval plotted versus time.


Q: What is the term for individuals of a species that live in a particular habitat?

 Choices:

- family

- ecosystem

- biosphere

- population

A:
population
