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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332

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Section
BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332
Chapter 24, Problem 1CT
Textbook Problem
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A massive die-off of lobsters in the Long Island Sound was blamed on pesticides sprayed to control mosquitoes that carry West Nile virus. Why might a chemical designed to kill insects also harm lobsters but have no effect on sea stars?

Summary Introduction

To explain: The reason why a chemical designed to kill insects harms lobsters but has no effect on the sea stars.

Concept introduction: Pesticides are chemical substances used to kill the insect pests thus preventing them from being a menace. Insect pests, lobsters and sea stars are all invertebrates. The insects and lobsters belong to the same Phylum: Arthropod. The sea star belongs to Phylum: Echinodermata.

Explanation of Solution

The animals that are classified under a single phylum share several similar characteristics. The lobsters are aquatic but the mosquitoes are terrestrial yet they share similar body structure and organ systems. Moreover, they follow similar pattern of indirect development that involves larval stages and both are protostomes. The arthropods also exhibit similar jointed appendages, metamerism and many more...

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