A mother and her child would be considered an example of an

A community
B population
C ecosystem
D biome

B population

B population

The correct answer is A. community.

To determine the answer, we need to understand the definitions of the terms provided:

A. Community: A community refers to a group of different populations living and interacting together in a specific area. It includes all the living organisms, such as plants, animals, and humans, inhabiting that particular area. In this case, a mother and her child form a part of the human population within a community.

B. Population: A population refers to a group of individuals of the same species living in a specific area. In this case, a mother and her child would not be considered a population since they are not the same species.

C. Ecosystem: An ecosystem refers to a community of living organisms, along with their physical environment, and the interactions between the organisms and their environment. It includes both the biotic (living) and abiotic (non-living) components. A mother and her child do not represent a complete ecosystem; they are just a part of a larger community.

D. Biome: A biome refers to a large geographical area characterized by specific climate conditions and the dominant vegetation and species adapted to that climate. A mother and her child do not represent a biome; they are just individuals within a community.

Therefore, the correct answer is A. community because they are individuals within a group of different populations living and interacting together in a specific area.