Retrieval #1 Flashcards
What is an ecosystem?
a natural system made up of biotic (living) and abiotic (non-living) components
What is the role of producers in an ecosystem?
they convert energy from the Sun into biomass
What is the role of decomposers in an ecosystem?
they break down dead plants and animals, and return nutrients to the soil
What is a food chain?
A sequence showing how different animals eat each other
What global-scale ecosystem is found in a 10-20 north and south of the equation?
Tropical grassland (savanna)
What type of climate is found in a tropical grassland ecosystem?
Hot with wet and dry seasons
Name a global scale ecosystem found between 25-40 north and south of equator
Temperate grasslands
What type of climate is found in temperate grassland ecosystems?
hot summers and cold winters with a wet and dry season
Between what latitudes are temperate
deciduous forests found?
30°-60° north of the equator
What is the typical vegetation found in
• deciduous forests?
broadleaf trees like oaks that lose their leaves in winter
At what latitude are coniferous forests found?
50°-60° north of the equator
At what latitudes are tropical rainforests found?
0°-10° north and south of the equator
What is the climate like in a tropical rainforest?
hot and wet all year round
How do tropical rainforests create their own water cycle?
High levels of evaporation and transpiration return moisture to the atmosphere
•Why do soils in tropical rainforests have
few nutrients?
nutrients leach from soils because of heavy rainfall; rapid nutrient recycling means most nutrients are stored in the biomass