20
QuizMultiple Choice

Aquatic Habitats

Question 20 • 26-27 - C - RUSD Environmental Science S1

Which statement about how organisms depend on abiotic factors in an aquatic ecosystem is not true?

Answer
A
most living organisms can survive in environments with several different temperature and salinity levels
B
both aquatic plants and animals depend on dissolved oxygen for respiration
C
abiotic factors that impact an aquatic ecosystem include temperature, salinity, flow, and dissolved oxygen in the water
D
abiotic factors of an aquatic ecosystem determine what kind of life can exist in that environment

Explanation

Organisms are adapted to particular ranges of temperature and salinity, so most cannot survive across several different levels of both factors. Dissolved oxygen, temperature, salinity, and water flow are all abiotic factors that affect aquatic life. These conditions also help determine which organisms can live in an environment, making statement A not true.

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