a. What type of phenotype is this? • behavioral • morphological • physiological 3.5 3 2.5 2 1.5 For b. and c. below, use the 0.5 following answer choices: directional 5000 10000 15000 20000 • bimodal Time (Years) • balancing/stabilizing b. In the first 5,000 years, the dorsal spine trait experienced which mode Number of Dorsal Spines
a. What type of phenotype is this? • behavioral • morphological • physiological 3.5 3 2.5 2 1.5 For b. and c. below, use the 0.5 following answer choices: directional 5000 10000 15000 20000 • bimodal Time (Years) • balancing/stabilizing b. In the first 5,000 years, the dorsal spine trait experienced which mode Number of Dorsal Spines
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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Question
Answer question 2

Transcribed Image Text:Question 2 (
The graph below depicts change in the mean number of dorsal spines over time
in a fossil population of freshwater (lake) three-spine sticklebacks. The fossil
deposit where this data was collected came from a freshwater deposit that did
not appear to have any large predatory fish in it.
a. What type of phenotype is this?
3.5
behavioral
3
• morphological
physiological
2.5
2
1.5
1
For b. and c. below, use the
0.5
following answer choices:
directional
5000
10000
15000
20000
• bimodal
balancing/stabilizing
Time (Years)
b.
In the first 5,000 years, the dorsal spine trait experienced which mode
of selection?
C.
From 5,000-17,000 yrs, the dorsal spine trait experienced which mode
of selection?
Number of Dorsal Spines
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