Question

which organisms are secondary consumers in this food web? select all that apply.
backswimmer shiner
rotifer copepod
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Explanation:

To determine secondary consumers, we recall that secondary consumers eat primary consumers (herbivores or omnivores that eat producers). In a typical aquatic food web:

• Backswimmer: Eats primary consumers like small invertebrates.
• Shiner: Eats primary consumers (e.g., zooplankton - eating organisms).
• Rotifer: Primarily a primary consumer (eats algae/producers), so this is incorrect.
• Copepod: Often a primary consumer (eats phytoplankton), so this is incorrect.

So the correct secondary consumers are backswimmer and shiner. (Note: The original selection included rotifer and copepod, which are likely errors; assuming a standard food web, the correct ones are backswimmer and shiner.)

Answer:

A. backswimmer, B. shiner (assuming options are labeled as such; if the original options were these four, the correct ones are backswimmer and shiner)