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- 1. Multiple ChoiceWhat are areas where freshwater meets saltwater called?wetlandsestuariescoastal bywaysintertidal zones
- 2. Multiple ChoiceAquatic ecosystem that has a thin layer of water covering soil that is wet most of the time is called ____.wetlandestuarylakepuddle
- 3. Multiple ChoiceWetlands and estuaries purify water and filter out _____.dead organismswaste productssaltpollution
- 4. Multiple ChoiceWhat factors affect aquatic ecosystems?Light, salinity, temperatureSun, moon and starsNothingCoral reefs, whales
- 5. Multiple ChoiceWhich factor(s) affect aquatic ecosystems?depthflownutrientsall affect aquatic ecosystems
- 6. Multiple ChoiceWhy does photosynthesis not occur in the deep ocean?Lack of nutrientsLow oxygen levelsExcess sunlightSunlight does not penetrate
- 7. Multiple ChoiceAn area where land is periodically underwater.WetlandForestDesertWoodland
- 8. Multiple ChoiceWetlands are important to fisheries in the united states because many of the fish caught each year use the wetlands for _______ and ________Dying and decayingFeeding and spawningLiving and workingEscaping and evading
- 9. Multiple ChoiceThe largest freshwater marsh in the United States.Louisiana swampMississippi riverTexas coastlineFlorida everglades
- 10. Multiple ChoiceDeep ocean technology has discovered organisms in hydrothermal vents that do not rely on sunlight to survive. What do these organisms use as their energy source?chemosynthesiselectrical chargehydropowerthermal heat
- 11. Multiple Choice
Plankton that uses photosynthesis:PhytoplanktonZooplankton - 12. Multiple Choice
Which of the following are producers in the food web?
Phytoplankton and seaweed
Phytoplankton and zooplankton
Squid and Elephant Seal
Seaweed and Crabs
- Answer choicesTagsAnswer choicesTags