Exotic species are not native to the area into which they are introduced and have not been part of the evolutionary history of the species in that ecosystem.

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Chapter 18, Problem 7MC

Summary Introduction

Introduction:

Exotic species are not native to the area into which they are introduced and have not been part of the evolutionary history of the species in that ecosystem.

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For Eicchornia crassipes (the Water hyacinth) which of the following is most correct: a. It has been successfully controlled outside its original natural range by the introduction of natural enemies b. It has no known natural enemies c. It has never been successfully controlled using natural biocontrol agents d. It is naturally controlled by many local enemies outside its original natural range

Certain plants live in nutrient poor environments and have evolved specialised leaves that attract, trap and digest insects for food. The interaction between the plants and the insects they consume is BEST described as: Select one: a. commensalism. b. parasitism. c. herbivory. d. predation Two related species of African lovebirds exhibit very different ways of carrying nesting materials back to the nest. The Fisher’s lovebird carries nesting material back using its beak, while the peach faced lovebird tucks nesting material in the feathers of its rump. The observation that hybrid lovebirds exhibit intermediate behaviours suggests that nest building behaviour in lovebirds is due to: Select one: a. gene by environment interaction. b. environmental factors. c. genetic factors. d. imprinting.

In a tropical rainforest, an open gap lacking vegetation has been created by the fall of a large tree. Which of the following statements describes the characteristics of the plant species that are last to colonize this disturbed habitat? a. they have low reproductive rates and are good competitors b. they are good colonizers c. they have high reproductive rates and are poor competitors d. they are dominated by r-selected species e. they have high species diversity

Answer 2

Question

Chapter 18, Problem 7MC

Summary Introduction

Introduction:

Exotic species are not native to the area into which they are introduced and have not been part of the evolutionary history of the species in that ecosystem.

Expert Solution & Answer

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Answer 3

Question

Chapter 18, Problem 7MC

Summary Introduction

Introduction:

Exotic species are not native to the area into which they are introduced and have not been part of the evolutionary history of the species in that ecosystem.

Expert Solution & Answer

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Answer 4

Question

Chapter 18, Problem 7MC

Summary Introduction

Introduction:

Exotic species are not native to the area into which they are introduced and have not been part of the evolutionary history of the species in that ecosystem.

Expert Solution & Answer

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Answer 5

Chapter 18, Problem 7MC

Summary Introduction

Introduction:

Exotic species are not native to the area into which they are introduced and have not been part of the evolutionary history of the species in that ecosystem.

Answer 6

Chapter 18, Problem 7MC

Summary Introduction

Introduction:

Exotic species are not native to the area into which they are introduced and have not been part of the evolutionary history of the species in that ecosystem.

Answer 7

Chapter 18, Problem 7MC

Summary Introduction

Introduction:

Exotic species are not native to the area into which they are introduced and have not been part of the evolutionary history of the species in that ecosystem.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 18 - Prob. 1SA Ch. 18 - Prob. 2SA Ch. 18 - Prob. 3SA Ch. 18 - Prob. 4SA Ch. 18 - Prob. 5SA Ch. 18 - Prob. 6SA Ch. 18 - Prob. 7SA Ch. 18 - Prob. 8SA Ch. 18 - Prob. 9SA Ch. 18 - Prob. 10SA

Exotic species are not native to the area into which they are introduced and have not been part of the evolutionary history of the species in that ecosystem.

Solution Summary: The author explains that exotic species are not native to the area into which they are introduced and have no predators that have evolved with them, so there is nothing to keep their population in check.

Concept explainers

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Introduction:

Exotic species are not native to the area into which they are introduced and have not been part of the evolutionary history of the species in that ecosystem.

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Chapter 18 Solutions

Exotic species are not native to the area into which they are introduced and have not been part of the evolutionary history of the species in that ecosystem.

Solution Summary: The author explains that exotic species are not native to the area into which they are introduced and have no predators that have evolved with them, so there is nothing to keep their population in check.

Concept explainers

Videos

Introduction: Exotic species are not native to the area into which they are introduced and have not been part of the evolutionary history of the species in that ecosystem.

Want to see the full answer?

Chapter 18 Solutions

Introduction:

Exotic species are not native to the area into which they are introduced and have not been part of the evolutionary history of the species in that ecosystem.