DK Find Out! Food Chains

Living things are linked through their food.

SciGirls Connect: All Tangled Up
SciGirls Connect

All organisms in an ecosystem depend on each other to survive; when one species starts to decline, multiple species may be affected because of the interconnectedness of life within the system.

Arizona Game and Fish Department: Focus Wild Arizona Activity Sheets - Crayfish
Arizona Game and Fish Department

In many parts of Arizona, rivers and lakes are rare.