BuyFind

Oceanography: An Invitation To Mar...

9th Edition
Garrison + 1 other
Publisher: Brooks Cole
ISBN: 9781305254282
BuyFind

Oceanography: An Invitation To Mar...

9th Edition
Garrison + 1 other
Publisher: Brooks Cole
ISBN: 9781305254282

Solutions

Chapter
Section
Chapter 15.8, Problem 1CC
Textbook Problem

How do fishes move effectively through such a dense medium as water?

Expert Solution
To determine

The way in which fishes move through such a dense medium like water.

Explanation of Solution

Seawater appears to be a perfect habitat; however, dwelling in it presents difficulties as well. The density of water is almost 800 times greater than air and its viscosity is around 100 times large than air. This would effectively hinder the motion at low speeds. The fishes are able to cut through this medium, despite their density and viscosity.

Normally, the propulsive efforts are made more effective by the streamlined bodies of active fish. The anterior area, body outline, and surface texture determine the resistance of a fish to movement, or drag. The increase in speed increases the drag geometrically. The fast swimmers among the fishes might be largely modified for reducing the decelerating effects of the denser and comparatively sticky medium in which they reside...

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Chapter 15 Solutions

Oceanography: An Invitation To Marine Science, Loose-leaf Versin
Show all chapter solutions
Ch. 15.3 - What evolutionary advances characteristic of...Ch. 15.4 - What are the most valuable shells? What is your...Ch. 15.4 - How does an arthropod growth curve compare with...Ch. 15.4 - Why do you think brittle stars are found in high...Ch. 15.4 - Which group of animals is Earths most successful...Ch. 15.4 - Clams and squid are in the same phylum. How can...Ch. 15.4 - Provide an example of each of the major groups of...Ch. 15.4 - It has been said that arthropods grow without...Ch. 15.4 - What structural system is unique to the phylum...Ch. 15.5 - Whats a notochord?Ch. 15.5 - Do all chordates have backbones?Ch. 15.6 - How are the vertebrates related?Ch. 15.6 - What are the evolutionary advantages of possessing...Ch. 15.6 - Why is this referred to as just one proposed...Ch. 15.7 - What are the classes of living fishes? Which class...Ch. 15.7 - Which class has the largest individuals? Which is...Ch. 15.7 - Are fishes warm-blooded (endothermic) or...Ch. 15.7 - Are most sharks dangerous to human swimmers?Ch. 15.8 - Why does having water and blood flow in opposite...Ch. 15.8 - Why do you suppose a male attaches permanently to...Ch. 15.8 - How do fishes move effectively through such a...Ch. 15.8 - How do fishes breathe?Ch. 15.8 - How does schooling behavior benefit fishes?Ch. 15.9 - Why do you think ridley turtles nest in such large...Ch. 15.9 - How are sea turtles able to find their way back to...Ch. 15.9 - What is an arriabada?Ch. 15.10 - From what group are birds thought to have evolved?Ch. 15.10 - How are seabirds different from land birds?Ch. 15.10 - Which marine birds are the worlds most efficient...Ch. 15.10 - How do penguins differ from other marine birds?Ch. 15.11 - Why do you think baleen whales are generally...Ch. 15.11 - What characteristics are unique to marine mammals?Ch. 15.11 - What are the largest animals ever to have lived on...Ch. 15.11 - What is echolocation? How do whales use it?Ch. 15.11 - How is a seal different from a sea lion? Which...Ch. 15.11 - Why do you think manatees evolved to be so much...Ch. 15 - When did the first true animals evolve? What...Ch. 15 - How can an arthropod grow within a tailored shell?...Ch. 15 - Are all chordates vertebrates? Are all vertebrates...Ch. 15 - Of the living classes of vertebrates, only one has...Ch. 15 - How are odontocete (toothed) whales different from...Ch. 15 - Do you think there are more species of animals on...Ch. 15 - There are more parasitic species of animals than...

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