Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332



Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem

Two arctic marine mammals that live in the same waters differ in the level of pollutants in their bodies. Bowhead whales have a lower pollutant load than ringed seals. What are some factors that might explain this difference?

Summary Introduction

To explain: The factors that distinguish the level of pollutants in the body of two arctic marine mammals that live in same water.

Concept introduction: Tropic level affects the pollutant concentration in an organism’s tissue. By biological magnification process, when some pollutants passes up a food chain then its concentration increases as food chain moves up the concentration of pollutant increases.


According to the diet of two given marine mammals, the amount of toxic materials present in the animal’s body is measured. If the organisms are consumed by ringed seal contain the pollutants, then the toxic materials become biologically magnified in the larger animal...

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