Refer to the next food web shown. The numbers indicate the concentrations of an organic pesticide measured in parts per million. Ospreys (20 ppm) Mussels (0.5 ppm) Fish (0.4 ppm) Water (0.00002 ppm) Plankton (0.03 ppm) 47. The pesticide concentration in the top trophic level of the food web is how many times greater than the pesticide concentration in the water? A) 1,000,000 D) 60,000 (B) 300,000 (E) 2,000 (C) 100,000 www

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Q: Which organisms are secondary consumers?

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Q: Identify an abiotic change in the environment that would cause a significant shift in this food web.…

A: Abiotic Factors Although not often included in the food web, abiotic factors or the non-living…

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A: Sea urchins feeds on the algae on the rocks, seaweeds, kelps and planktons on sea floor via their…

Q: The diagram shown here illustrates a typical marine food web that can be contaminated with mercury.…

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Q: Below is a diagram of a complex food web. Match the removal of an individual species with the result…

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Q: ) What is the independent variable? What is the dependent variable? B)In what type of environment…

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Q: What freshwater source would you predict has the lowest dissolved oxygen concentration?

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A:

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