The arrangement of individuals in a population across the landscape?

• A. Niche
• B. Habitat
• C. Population Density
• D. Random Distribution

Answer: (D)

The main idea here is how individuals are spread across space, i.e., the pattern of their spatial distribution. A random distribution describes a situation where individuals are laid out without a predictable pattern—their locations are essentially independent of one another, and the chance of finding an organism is about the same across the area. This matches the concept of arrangement across the landscape.

Niche refers to the role an organism plays in its ecosystem, habitat is the physical place where it lives, and population density is a count of individuals per unit area. Those terms describe function, location, or quantity, not the spatial pattern of how individuals are arranged.