1. Aquatic habitats:
a) Freshwater habitats: Include lakes, rivers, streams, ponds, and wetlands.
b) Marine habitats: Include oceans, seas, estuaries, and coral reefs.
2. Terrestrial habitats:
a) Forests: Including tropical rainforests, temperate forests, boreal forests, and taiga.
b) Grasslands: Including savannas, prairies, and pampas.
c) Deserts: Including hot deserts, cold deserts, and semi-deserts.
d) Tundra: Including Arctic tundra and alpine tundra.
3. Polar habitats:
a) Arctic habitats: Include the Arctic Ocean and the surrounding land areas.
b) Antarctic habitats: Include the Antarctic continent and the surrounding waters.
4. Urban habitats: Including cities, towns, and suburban areas.
These habitats can be further subdivided into more specific types based on various factors such as elevation, climate, soil conditions, and plant and animal communities. Each habitat supports a unique assemblage of species adapted to the specific conditions found there.