In a species of fish, two neighboring populations occupy slightly different habitats; the first mainly lives in shallow waters with low predation, the second lives in deeper waters with increased predation. Males in the first population develop a long anal fin as secondary sexual trait in population, but males in the second population do not have long fins. When researchers artificially attached long anal fins to males from the second population, they found that female fish much preferred males with the longer fins. They also found that gene flow between these populations exist, and that long anal fins make it harder to swim fast. Why aren't long fins more frequent in this population? Natural selection is counteracting sexual selection O There isn't enough genetic variation for long tails to develop These populations are in the process of speciating, and eventually females will develop a preference for short tails. O Drift is causing long tails to disappear from the population

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,...
icon
Related questions
Question
No Service
x
12:43 AM
✓ @ 53%
In a species of fish, two neighboring populations occupy slightly different habitats; the first
mainly lives in shallow waters with low predation, the second lives in deeper waters with
increased predation. Males in the first population develop a long anal fin as secondary
sexual trait in population, but males in the second population do not have long fins.
When researchers artificially attached long anal fins to males from the second population,
they found that female fish much preferred males with the longer fins.
They also found that gene flow between these populations exist, and that long anal fins
make it harder to swim fast.
Why aren't long fins more frequent in this population?
O Natural selection is counteracting sexual selection
O There isn't enough genetic variation for long tails to develop
O These populations are in the process of speciating, and eventually females will develop a preference
for short tails.
O Drift is causing long tails to disappear from the population
Transcribed Image Text:No Service x 12:43 AM ✓ @ 53% In a species of fish, two neighboring populations occupy slightly different habitats; the first mainly lives in shallow waters with low predation, the second lives in deeper waters with increased predation. Males in the first population develop a long anal fin as secondary sexual trait in population, but males in the second population do not have long fins. When researchers artificially attached long anal fins to males from the second population, they found that female fish much preferred males with the longer fins. They also found that gene flow between these populations exist, and that long anal fins make it harder to swim fast. Why aren't long fins more frequent in this population? O Natural selection is counteracting sexual selection O There isn't enough genetic variation for long tails to develop O These populations are in the process of speciating, and eventually females will develop a preference for short tails. O Drift is causing long tails to disappear from the population
Expert Solution
steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Evolutionary Adaptations
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education