Share Environmental Science Final Exam Review Chapter 3.1 & 3.2
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How does human activity affect aquatic ecosystems?
Overfishing and pollution has a negative effect on the coastal ecosystems.
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 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.
Microscopic algae and other producers in the __ zone form the base of most ocean food chains.
Twilight zone
Dark zone
Sunlit zone
Which ecosystems help protect coastal areas from flood damage?
Estuaries
Ponds
Rivers
Which ecosystem has flowing water?
Stream
Pond
Lake
Where would you find species adapted to withstand strong wave action?
Intertidal zone
Wetlands
Estuaries
Which is not a freshwater ecosystem?
Oceans
Rivers
Ponds
A ___ is an underwater structure made from skeletons of tiny, soft-bodied animals.
Coral reef
The ___ is an area of ocean shore between the lowest low tide and the highest high tide.
Intertidal zone
An ___ is a region along a coastline that forms where streams or rivers flow into a body of salt water.
Estuary
Aquatic ecosystem that has a thin layer of water covering soil most of the time is called ___
Wetland
___ is the amount of salt dissolved in water.
Salinity
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.
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.
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
