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- Multiple ChoicePlease save your changes before editing any questions.
Ecosystems are areas made up of both living and non-living things. What are the living elements of an ecosystem called?
Abiotic
Biotic
Primary Producers
Primary Consumers
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One abiotic element of a marine ecosystem is:
fish
algae
bacteria
salinity
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The vast majority (over 95%) of aquatic ecosystems are made up of this type of environment.
Freshwater
Brackish water
Marine (saltwater)
Bottled water
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A biotic element of an aquatic ecosystem is:
plankton
pH (potential hydrogen)
topography
temperature
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This freshwater ecosystem plays a vital role in filtering pollutants, serving as a breeding ground for organisms, and preventing flooding.
Freshwater Wetlands
Intertidal Zones
Open Ocean
Coral Reefs
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This ecosystem is where freshwater and saltwater meet.
Ponds
Rivers
Esturaies
Deep Ocean Abyssal Plains
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The three types of marine ecosystems we discussed in class were:
Lakes, ponds, and streams
Estuaries, rivers, and swamps
Intertidal, coastal ocean, and open ocean
Lions, tigers, and bears....oh my!
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Intertidal ecosystems are submerged during high tide and exposed during low tide.
True
False
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Take a look at the photo and decide which answer fits.
Kelp Forest
Coral Reef
Rocky Seashore
Sandy Beach
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Take a look at the photo and decide which answer best fits.
Kelp Forest
Rocky Seashore
Coral Reef
Freshwater Bog
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Take a look at the photo and decide which answer best fits.
Kelp Forest
Coral Reef
Open Ocean
Esturay
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What ecosystem would you most likely find the humpback whale?
Open Ocean
River
Esturay
Freshwater Wetland
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Ocean acidification is a result of an increase of which of the following elements?
Nitrogen
Carbon
Sulfer
lead
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Which of the following is an abiotic factor that affects marine ecosystems?
Pressure
Algae
Pedators
Food Web
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Where is the largest store of carbon contained?
Atmosphere
Oceans
Fossil Fuels
Plants
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Which process would most likely increase the dissolved oxygen level in a freshwater lake?
algae bloom
lake turnover
photosynthesis
respiration
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What does DO stand for?
Dissolved oxygen
Dissolved osmium
Dissolved ozone
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True or false: dead zones can occur in both fresh and marine waters around the world.
True
False
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As water temperature increases what happens to dissolved oxygen levels?
increase
decrease
stay the same
flucuate
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The Photic Zone (Sunlight Zone) houses 90% of life in our oceans. Why?
Phytoplankton (base of the food chain) conducting phtosynthesis
Apex predators (top of the food chain) consuming large marine organisms
Most ocean life tends to float to the top layer of the ocean
This is a great place for fish to hide from predators
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As saltwater evaporates in a tide pool what happens to the salinity level of that water?
decreases
stays the same
increases
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These rocks are:
Biotic
Abiotic
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These barnacles are:
Biotic
Abiotic
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Depending on the surrounding soil and bedrock most lakes, ponds, and streams have a pH of:
6 to 8
0 to 1
13 to 14
Exactly 7 Always!
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Which estuary would you prefer visiting on a field trip?
Weeks Bay
Five Rivers
I'd rather stay at school