Step 1: Definition of Population.
A population refers to a group of individuals of the same species living in a specific geographic area at a given time. Populations are characterized by factors such as size, density, birth rate, and mortality rate.
Step 2: Definition of Community.
A community refers to a group of different species living in a specific area and interacting with one another. It includes all the organisms that coexist within a given habitat, such as plants, animals, and microorganisms.
Step 3: Differences Between Population and Community.
1. Population: Consists of individuals of a single species.
2. Community: Includes multiple species interacting within the same area.
Step 4: Conclusion.
Thus, a population is a group of the same species, while a community consists of different species interacting in an area.
Final Answer:
\[
\boxed{\text{A population consists of individuals of the same species, while a community includes multiple interacting species.}}
\]