Ecological Hierarchy

25 questions on this block. Tap an answer and it moves on by itself — correct answers advance immediately, misses hold a few seconds so you can read why.

One, one species, all species, plus nonliving Organism → population → community → ecosystem → biome → biosphere. The moment a description names something nonliving, it is at least an ecosystem.

Warm-up · not scored

Click the buttons and watch what changes.

One species = population. All species = community. Add the nonliving factors = ecosystem.

Part 1The six levels

Part 2Population, community, ecosystem

Part 3Biotic and abiotic factors

Part 4Classifying real examples

Part 5Putting it together

Ecological Hierarchy

Warm-up · not scored

Review Complete

Worth another look