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Active Lecture Questions Copyright © 2011 Pearson Education Inc. Chapter 16 The Origin of Species.

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1 Active Lecture Questions Copyright © 2011 Pearson Education Inc. Chapter 16 The Origin of Species

2 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e Which of the following is a species? 1.A group of interbreeding individuals that is reproductively isolated from other groups 2.A group of organisms and their interactions with the environment 3.The biotic and abiotic components of an ecosystem 4.An individual organism and its niche

3 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e Which of the following is a species? 1.A group of interbreeding individuals that is reproductively isolated from other groups 2.A group of organisms and their interactions with the environment 3.The biotic and abiotic components of an ecosystem 4.An individual organism and its niche

4 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e On the basis of differences in DNA and structure, West African elephants are thought to be a different species from Central, East, and South African savanna elephants and Central African forest elephants. Which isolation mechanism has occurred? 1.Geographical isolation 2.Ecological isolation 3.Temporal isolation 4.Behavioral isolation

5 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e On the basis of differences in DNA and structure, West African elephants are thought to be a different species from Central, East, and South African savanna elephants and Central African forest elephants. Which isolation mechanism has occurred? 1.Geographical isolation 2.Ecological isolation 3.Temporal isolation 4.Behavioral isolation

6 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e Two populations of the columbine flower had lived at different altitudes in the same area. When the two were reunited, they could no longer breed. Which isolation mechanism has occurred? 1.Geographical isolation 2.Ecological isolation 3.Temporal isolation 4.Behavioral isolation

7 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e Two populations of the columbine flower had lived at different altitudes in the same area. When the two were reunited, they could no longer breed. Which isolation mechanism has occurred? 1.Geographical isolation 2.Ecological isolation 3.Temporal isolation 4.Behavioral isolation

8 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e One firefly population mates right after sundown, and another mates in the middle of the night. Which isolation mechanism is occurring? 1.Geographical isolation 2.Ecological isolation 3.Temporal isolation 4.Behavioral isolation

9 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e One firefly population mates right after sundown, and another mates in the middle of the night. Which isolation mechanism is occurring? 1.Geographical isolation 2.Ecological isolation 3.Temporal isolation 4.Behavioral isolation

10 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e A female cricket does not understand the mating call of a male cricket. Which isolation mechanism is occurring? 1.Geographical isolation 2.Ecological isolation 3.Temporal isolation 4.Behavioral isolation

11 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e A female cricket does not understand the mating call of a male cricket. Which isolation mechanism is occurring? 1.Geographical isolation 2.Ecological isolation 3.Temporal isolation 4.Behavioral isolation

12 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e Sea urchins spawn their gametes freely into the surrounding ocean waters. The sperm of one type of urchin will not fertilize the egg of another type of urchin. Which isolation mechanism is occurring? 1.Geographical isolation 2.Ecological isolation 3.Temporal isolation 4.Gametic incompatibility

13 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e Sea urchins spawn their gametes freely into the surrounding ocean waters. The sperm of one type of urchin will not fertilize the egg of another type of urchin. Which isolation mechanism is occurring? 1.Geographical isolation 2.Ecological isolation 3.Temporal isolation 4.Gametic incompatibility

14 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e A leopard frog and a wood frog mate and produce offspring, which die within a few days. Which isolation mechanism has occurred? 1.Geographical isolation 2.Ecological isolation 3.Hybrid inviability 4.Hybrid infertility

15 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e A leopard frog and a wood frog mate and produce offspring, which die within a few days. Which isolation mechanism has occurred? 1.Geographical isolation 2.Ecological isolation 3.Hybrid inviability 4.Hybrid infertility

16 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e A cross between a male tiger and a female lion is called a tigon. The tigon is sterile. Which isolation mechanism has occurred? 1.Geographical isolation 2.Ecological isolation 3.Hybrid inviability 4.Hybrid infertility

17 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e A cross between a male tiger and a female lion is called a tigon. The tigon is sterile. Which isolation mechanism has occurred? 1.Geographical isolation 2.Ecological isolation 3.Hybrid inviability 4.Hybrid infertility

18 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e Two populations of similar-appearing snapping shrimp live on either side of the Isthmus of Panama. When the populations are brought together, neither displays courtship behaviors; they are hostile toward each other. What type of speciation is occurring? 1.Hybrid infertility 2.Hybrid inviability 3.Allopatric 4.Sympatric

19 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e Two populations of similar-appearing snapping shrimp live on either side of the Isthmus of Panama. When the populations are brought together, neither displays courtship behaviors; they are hostile toward each other. What type of speciation is occurring? 1.Hybrid infertility 2.Hybrid inviability 3.Allopatric 4.Sympatric

20 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e More than 300 species of cichlids live in Lake Malawi in Africa. Although the species are similar, the fish have different diets, gill structures, jaws, and teeth. What type of speciation has occurred? 1.Hybrid infertility 2.Hybrid inviability 3.Allopatric 4.Sympatric

21 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e More than 300 species of cichlids live in Lake Malawi in Africa. Although the species are similar, the fish have different diets, gill structures, jaws, and teeth. What type of speciation has occurred? 1.Hybrid infertility 2.Hybrid inviability 3.Allopatric 4.Sympatric

22 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e The cichlids of Lake Malawi displayed __________, quickly taking advantage of unoccupied habitats. (Mammals also did so after the dinosaurs went extinct.) 1.Allopatric speciation 2.Hybrid selection 3.Adaptive radiation 4.Extinction

23 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e The cichlids of Lake Malawi displayed __________, quickly taking advantage of unoccupied habitats. (Mammals also did so after the dinosaurs went extinct.) 1.Allopatric speciation 2.Hybrid selection 3.Adaptive radiation 4.Extinction

24 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e What would NOT make pandas vulnerable to extinction? 1.An extended range as a result of multiple populations throughout China 2.Overspecialization on bamboo as their food source 3.Habitat alteration for farms, homes, and businesses 4.Competition for resources with black bears

25 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e What would NOT make pandas vulnerable to extinction? 1.An extended range as a result of multiple populations throughout China 2.Overspecialization on bamboo as their food source 3.Habitat alteration for farms, homes, and businesses 4.Competition for resources with black bears

26 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e In the figure, one population eventually becomes two separate species. What is the mechanism producing these two species? 1.Sympatric isolation 2.Allopatric isolation 3.Mechanical incompatibility 4.Ecological isolation Figure 16-9

27 Copyright © 2011 Pearson Education Inc.Biology: Life on Earth, 9e In the figure, one population eventually becomes two separate species. What is the mechanism producing these two species? 1.Sympatric isolation 2.Allopatric isolation 3.Mechanical incompatibility 4.Ecological isolation Figure 16-9

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