A. individuals in a species
B. species in a community
C. communities in an ecosystem
D. individuals in a family
✅ The correct answer is option A.
A population is defined as a group of individuals in a species. Hence they can interbreed and include organisms in a geographical area. The total of all populations is called a universe.
A population is defined as a group of individuals in a species. Hence they can interbreed and include organisms in a geographical area. The total of all populations is called a universe.