Flashcards in Ecosystems Deck (18):
What is an ecosystem?
An ecosystem is a unit that includes all the biotic and abiotic parts in an area.
What does biotic mean?
What does abiotic mean?
The organisms in ecosystems can be classed as what?
Producers, consumers or decomposers.
A producer is a what?
An organism that uses sunlight to produce food.
A consumer is a what?
An organism that gets its energy by eating other organisms such as producers or other consumers.
A decomposer is a what? Give examples.
An organism that gets its energy by breaking down dead material. Bacteria and fungi are decomposers.
A food chain shows what?
What eats what.
A food web shows what?
Lots of food chains and how they overlap.
What is the nutrient cycle?
When dead material is decomposed, nutrients are released into the soil. The nutrients are then taken up from the soil by plants. The plants may be eaten by consumers. When the plant or consumer dies, the nutrients are returned to the soil.
What factor determines which type of ecosystem will form?
What are the 6 major biomes?
Grassland, tundra, temperate deciduous forest, polar, hot desert, tropical rainforest.
What are the 2 types of grasslands?
Savannah and temperate grassland.
Where are hot deserts found?
Between 15° and 35° north and south of the equator.
Where are polar biomes found?
They are found around the north and south poles.
Where are tundra biomes found?
Found in high latitudes.
What is a biome?
A large ecosystem.