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Geographic area on Earth that contains ecosystems with similar biotic and abiotic features.
Biome
Biome that receives very little rain.
Desert
Biome where grasses are the dominant plant.
Grassland
Region of Earth between the tropics and the polar circles.
Temperate
Forest biome consisting mostly of cone-bearing evergreen trees.
Taiga
Cold, dry, and treeless biome that has a layer of permanently frozen soil.
Tundra
Where would you find plants with stems that can store large amounts of water?
Desert
Where would you find trees that have no leaves during the winter?
Temperate Deciduous Forest
Which biomes have rich, fertile soil?
 
grassland and temperate deciduous forest
 
tundra and tropical rainforest
 
grassland and taiga
Which biome has lost more than half its trees to logging activity?
Tropical Rainforest
Compare mammals that live in the tundra biomes with those that live in desert biomes. What adaptations does each group have that help them survive?
Tundra mammals: thick fur, hibernation, migration to warmer climates during winter. Desert: active at night or at dawn and dusk to avoid heat, do not need much
How does human activity affect each land biome?
Humans affect land biomes by taking away land for development which reduces resources and habitat for many species. They also produce pollution.
What is the relationship between ecosystems and biomes?
Biomes contain many different ecosystems, However, every ecosystem within a biome has similar biotic and abiotic factors.
___ is the amount of salt dissolved in water.
Salinity
Aquatic ecosystem that has a thin layer of water covering soil most of the time is called ___
Wetland
An ___ is a region along a coastline that forms where streams or rivers flow into a body of salt water.
Estuary
The ___ is an area of ocean shore between the lowest low tide and the highest high tide.
Intertidal zone
A ___ is an underwater structure made from skeletons of tiny, soft-bodied animals.
Coral reef
Which is not a freshwater ecosystem?
 
Oceans
 
Ponds
 
Rivers
Where would you find species adapted to withstand strong wave action?
 
Intertidal zone
 
Estuaries
 
Wetlands
Which ecosystem has flowing water?
 
Stream
 
Pond
 
Lake
Which ecosystems help protect coastal areas from flood damage?
 
Estuaries
 
Ponds
 
Rivers
Microscopic algae and other producers in the __ zone form the base of most ocean food chains.
 
Sunlit zone
 
Twilight zone
 
Dark zone
How are ecosystems in the deep water of lakes and oceans different?
Sunlight does not penetrate, so photosynthesis cannot take place. Decaying organisms that drift down from shallower water fill the role of producers.
What might happen to a coastal area if its estuary were filled in to build houses?
Estuaries help protect coastal areas from flooding and other damage. If they were filled in, there would be nothing to protect the coastline.
How does human activity affect aquatic ecosystems?
Overfishing and pollution has a negative effect on the coastal ecosystems.
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