In Stream Environments the Downstream Drift of Organisms Is Countered

question 33

Multiple Choice

In stream environments the downstream drift of organisms is countered by the upstream movements in addition to reproduction. What is the name for this process?

• A) Survivorship curve
• B) Population dynamics
• C) Colonization cycle
• D) Spates

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The condition of having stable income or resources to support a standard of living now and in the foreseeable future.

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