Biome — Science definition
A large region defined by a characteristic climate and the community of plants and animals adapted to it, such as tundra or tropical rainforest.
Where it is taught
- Biomes & Aquatic Systems — Ecology, Populations & Biodiversity, Physics & Environmental Science, Grade 12
In use
A biome is a large region unified by its climate and by the community of life adapted to that climate.
Biomes & Aquatic Systems
Questions using biome
Problem 1
- altitude and soil color
- temperature and precipitation
- wind speed and day length
- latitude and longitude
Answer and explanation
temperature and precipitation
Average temperature and annual precipitation are the master controls that define terrestrial biomes.
Problem 2
- tropical rainforest
- hot desert
- tundra
- temperate grassland
Answer and explanation
tundra
Permafrost and a short, cold growing season are defining features of the tundra.
Problem 3
Answer and explanation
Because biomes are defined by temperature and precipitation, warming shifts those conditions toward the poles and higher elevations, so a biome's suitable zone moves. Species must migrate to track their climate, but many cannot move fast enough, are blocked by cities or mountains, or run out of cooler ground, so their populations decline or the community reorganizes into a new ecosystem.
Problem 4
Answer and explanation
Low local nutrients can limit per-area production, but its enormous total area matters for aggregate output. Biome labels summarize patterns; productivity varies by location and area basis.
Response criteria
- State a scientifically accurate conclusion.
- Show the calculation or mechanism that supports it.
- Include units, conditions, or limits where relevant.