Asked by Sierra Mizgorski on Jun 11, 2024
Verified
What environmental factor makes it very difficult for organisms that live in estuaries?
A) the movement of water as the river flows into the ocean
B) the constant fluctuation in the salinity of the water as the salt water and fresh water mix
C) the fluctuating nutrient levels as the river brings different levels of nutrients to the estuary
D) the change in water levels as the tide ebbs and flows
E) the change in the temperature of the water since the river water is colder than the ocean
Estuaries
Coastal water bodies where freshwater from rivers and streams mixes with saltwater from the ocean, creating an ecologically rich environment.
Salinity
The concentration of dissolved salts in water, affecting the density, biodiversity, and chemical behavior of aquatic environments.
Fluctuation
A variation or change in a state, quantity, or level, often without a set pattern or rhythm.
- Understand the critical value of special ecological zones, like estuaries and coral reefs, and their biological diversity.
Verified Answer
BE
Bryce EberlyJun 12, 2024
Final Answer :
B
Explanation :
The constant fluctuation in salinity makes it very difficult for organisms that live in estuaries as different species have different salinity tolerances. Some organisms may thrive in the brackish water while others may struggle to adapt to quick changes in salinity levels.
Learning Objectives
- Understand the critical value of special ecological zones, like estuaries and coral reefs, and their biological diversity.