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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332

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BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem
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Icefish live in the extremely cold ocean near Antarctica. They are the only vertebrates that do not make hemoglobin. They have a large heart and take up oxygen across their skin, as well as their gills. Why are icefish thought to be especially threatened by ongoing ocean warming?

Summary Introduction

To explain: The reason why icefish is believed to be especially threatened by ongoing ocean warming.

Concept introduction: When the ocean absorbs most of the excess heat from the greenhouse gases, it will lead to rising ocean temperature. The climate affects the ocean; due to the change in climate, the ocean gets warmer and it has an effect on the seafloor.

Explanation

Icefish that lives in the extremely cold ocean are the only vertebrates that do not make hemoglobin. Icefish do not have hemoglobin and due to this they cannot bind and store oxygen. The dissolved oxygen content in the warm water is less than the DO content in the cold water...

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