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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Transcribed Image Text:Name
Date
Natural Selection: Crash Course
Biology #14
Subject: Science
Directions: Follow along with the video and complete the questions below.
1. (1:16) What else do you already know about how species change over time to adapt to
their environment?
2. (1:39) Which of the following correctly explains why the black trait rose from 2% to 95% in
moths during the Industrial Revolution in England?
A. As the soot concentration increased in the air, dark-colored moths were better equipped to find
their mates, making it more likely for them to thrive and multiply.
B. As trees became darker, dark-colored moths were less likely to be found and eaten by birds,
making it more likely for them to thrive and multiply.
C. As the darker trees made conditions more favorable for darker species of moths, dark-colored
moths ate light-colored moths more often.
3. (2:19) Which of the following correctly ranks natural selection's role in evolution?
A. Natural selection is the chief cause of evolutionary change, ahead of mutation, migration, and
genetic drift.
B. Natural selection and genetic drift are the two chief causes of evolutionary change, ahead of
mutation and migration.
C. Natural selection, genetic drift, mutation, and migration are all equally important in dictating
evolutionary change.
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