BIOLOGY HOW LIFE WORKS & ACHIEVE FOR BIO
3rd Edition
ISBN: 9781319406851
Author: Morris
Publisher: MAC HIGHER
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Chapter 21.2, Problem 6SAQ
Summary Introduction
A species indicates a closed gene pool, in which various alleles are shared only among the members of that species. The factors that are responsible for causing reproductive isolation are normally differentiated into two categories. They are pre-zygotic isolating factors and post-zygotic isolating factors, and this categorization is based on when they act.
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Investigation: Is a dog more closely related to a coyote or a wolf?
Gray Wolf
Species Name: Canis lupus
Color: Light gray to black
Size: 80-120 pounds, 2.5 feet tall
Appearance: broad snout, round ears, long tail
Coyote
Species Name: Canis latrans
Color: Light gray to brown
Size: 20-50 pounds, 1.5 feet tall
Appearance: narrow snout, pointed ears, long tail
Dog, Alaskan Malamute
Species Name: Canis lupus familiaris
Color: Gray and white or brown and white
Size: 70-80 pounds, 2 feet tall
Appearance: broad snout, round ears, long tail
1. Examine the images and descriptions above.
Underline any similarities between the dog and the wolf.
Place a star
next to any coyote traits that are similar to the dog.
2. Based on appearance alone, which do you think is the most closely related to a dog?
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BIOLOGY HOW LIFE WORKS & ACHIEVE FOR BIO
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