Env. Science - Aquatic Ecosystems Review

Flashcard
•
Science
•
9th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What are phytoplankton and their role in aquatic ecosystems?
Back
Phytoplankton are microscopic organisms that float freely in water and are a primary source of food for many aquatic organisms, forming the base of the aquatic food web.
2.
FLASHCARD QUESTION
Front
What is the primary source of food for filter feeders in deep ocean waters?
Back
The primary source of food for filter feeders in deep ocean waters is dead organisms falling from the upper ocean layers.
3.
FLASHCARD QUESTION
Front
What are the ecological consequences of overfishing in marine ecosystems?
Back
Overfishing leads to loss of biodiversity and disruption of the food chain, affecting the balance of marine ecosystems.
4.
FLASHCARD QUESTION
Front
What are benthos and where are they typically found in aquatic ecosystems?
Back
Benthos are organisms that live attached to or near the substrate at the bottom of aquatic ecosystems.
5.
FLASHCARD QUESTION
Front
How do organisms adapt to survive in estuaries?
Back
Organisms in estuaries adapt by developing tolerance to varying salinity levels due to the mixing of freshwater and saltwater.
6.
FLASHCARD QUESTION
Front
What is the significance of biodiversity in aquatic ecosystems?
Back
Biodiversity is crucial for maintaining ecosystem stability, resilience, and the overall health of aquatic environments.
7.
FLASHCARD QUESTION
Front
How do nutrient cycles affect aquatic ecosystems?
Back
Nutrient cycles, such as the nitrogen and phosphorus cycles, are essential for supporting the growth of aquatic plants and maintaining the health of aquatic ecosystems.
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