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An ____ is made up of abiotic factors and biotic factors.
ecosystem
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Abiotic factors are ____ and biotic factors are ____.
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A ____ is made up of living things.
community
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A community contains several ____.
populations
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population
all organisms of the same species in an area
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A population ____ to adapt to a ecosystem. The population interacts with ____ and ____.
- evolves
- the environment
- each other
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____ contend for resources.
Competition
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2 different species can't coexist in a community if they share the same ____.
niche
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niche
method to use the resources available
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predation
a predator/prey relationship
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mutualism
- a relationship in which both species benefit
- (+/+)
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commensalism
- a relationship in which 1 species benefits and the other is indifferent
- (+/0)
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parasitism
a relationship that benefits 1 species and harms the other
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biome
an ecosystem based on climate
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How many terrestrial biomes are there?
7
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What are the names of each of the biomes?
- tundra
- taiga
- temperate forest
- temperate grassland
- savanna
- desert
- tropical rainforest
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Abiotic factors of tundra.
- ice/snow
- cold/dark
- long, cold winters
- permafrost (permanently frozen underlayer)
- little rainfall
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Biotic factors of tundra.
- few plants (small)
- few animals year round
- During the summer months, animals migrate to the tundra
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What are two other names for taiga?
- coniferous forest
- coniferous rain forest
- boreal forest
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Abiotic factors of taiga.
- very cold winter (long)
- short cool summers with rain
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Biotic factors of taiga.
- tall trees (evergreen)
- understory (close to ground) does not contain too many plants
- small shrubs (ferns [tolerant of minimal light])
- lots of animals
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What is another name for temperate forest?
temperate deciduous forest
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Abiotic factors of temperate forest.
- cold winters & warm summers
- high rainfall
- 4 seasons
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Biotic factors of temperate forest.
- deciduous trees (loses leaves in winter)
- understory made up of tall trees, small trees, and shrubs
- animals that hibernate
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Abiotic factors of temperate grassland.
- cold winters
- hot/dry summers
- soil is great for growing crops
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Biotic factors of temperate grassland.
- low growing plants
- taller grass (more rain)
- shorter grass (less rain)
- bison/buffalo (grazing animal)
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Abiotic factors of savanna.
- cool, dry winters
- hot, wet summers
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Biotic factors of savanna.
- grasses (not a lot of trees)
- lost of animals (grazing and predators)
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Abiotic factors of desert.
- very little rainfall
- hot day, cold night
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Biotic factors of desert.
- few plants (adapted to little water)
- nocturnal animals
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Abiotic factors of tropical rainforest.
- always warm
- always wet (lots of rain)
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Biotic factors of tropical rainforest.
- largest selection of living things (plants and animals)
- epiphyte (plant that grows on other plants)
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What are the three layers of the tropical rainforest (top to bottom)?
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What are the two different types of marine biomes?
- fresh water
- ocean (salt water)
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