Question

population density is related to ______.
space and food

species and space

water and food

food and species

Explanation:

Population density refers to the number of individuals per unit area or volume. Space (the area/volume available) and the resources like food that support the population are key factors related to it. "Species and space" or the other options with water/food - species combinations don't directly relate as population density is about how many individuals (of a population, not species - wide in this context) are in a space and the resources (food is a key resource) available. So the correct relation is with space and food.

Answer:

A. space and food