Sample Solution from
Biology of the Invertebrates
7th Edition
ISBN: 9780073524184
Chapter 1
Problem 1TFDI
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Summary Introduction

To analyze:

The adaptability of small invertebrates for low Re.

Introduction:

Invertebrates are creatures that do not form a vertebral column. Water is an ideal medium of life for lower vertebrates since it offers several benefits to these species including nutrients and thermal stability. The Reynolds number (Re) is the ratio of water's inertial to viscous forces.

Expert Solution

Explanation of Solution

Some of the adaptations include:

  • Presence of motile structures and holding gears like hair and filaments during high water flow.
  • Special protein structures like fibrous protein threads provide surface adhesion in water.
  • Net-like structures for hunting.
  • The reduced surface area of the body, thereby, reduces pressure on the body.
Conclusion

Some adaptations include special structures, protein coating, and smaller body sizes.

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