4 6. 1. The stickleback would swim from the ocean up to fresh water lakes to spawn (lay eggs). When the land rose and cut off the river passage back to the ocean, what challenge did the stickleback face? 2. Ten-thousand years later, how have the stickleback in the freshwater lakes changed or evolved? 3. The ocean has many predatory fish that could catch and eat the stickleback, what are at least two characteristics that ocean stickleback evolved? 4. Why are stickleback spines a liability (an unfortunate characteristic) in Bear Paw Lake? 5. What FOUR letters make up the stickleback DNA?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Arlal
10.5
3.
1. The stickleback would swim from the ocean up to fresh water lakes to spawn (lay eggs).
When the land rose and cut off the river passage back to the ocean, what challenge did the
stickleback face?
2. Ten-thousand years later, how have the stickleback in the freshwater lakes changed or
evolved?
3. The ocean has many predatory fish that could catch and eat the stickleback, what are at least
two characteristics that ocean stickleback evolved?
4. Why are stickleback spines a liability (an unfortunate characteristic) in Bear Paw Lake?
5. What FOUR letters make up the stickleback DNA?
Sign out
Transcribed Image Text:Normal text Arlal 10.5 3. 1. The stickleback would swim from the ocean up to fresh water lakes to spawn (lay eggs). When the land rose and cut off the river passage back to the ocean, what challenge did the stickleback face? 2. Ten-thousand years later, how have the stickleback in the freshwater lakes changed or evolved? 3. The ocean has many predatory fish that could catch and eat the stickleback, what are at least two characteristics that ocean stickleback evolved? 4. Why are stickleback spines a liability (an unfortunate characteristic) in Bear Paw Lake? 5. What FOUR letters make up the stickleback DNA? Sign out
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