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Genetic Diversity and Invasive Species

Description: This quiz aims to assess your understanding of genetic diversity and invasive species. It covers topics such as the importance of genetic diversity, the threats posed by invasive species, and management strategies for invasive species.
Number of Questions: 15
Created by:
Tags: genetic diversity invasive species conservation ecology
Attempted 0/15 Correct 0 Score 0

What is genetic diversity?

  1. The range of genetic variation within a population or species.

  2. The number of different species found in an ecosystem.

  3. The genetic makeup of an individual organism.

  4. The genetic similarity between two or more individuals.


Correct Option: A
Explanation:

Genetic diversity refers to the variation in the genetic makeup of individuals within a population or species. It is important for the survival and adaptation of populations, as it allows for the selection of beneficial traits and the purging of harmful ones.

Which of the following is NOT a threat posed by invasive species?

  1. Competition with native species for resources.

  2. Predation on native species.

  3. Hybridization with native species.

  4. Increased genetic diversity in native populations.


Correct Option: D
Explanation:

Invasive species can pose a number of threats to native species, including competition for resources, predation, and hybridization. However, increased genetic diversity in native populations is not typically considered a threat, as it can provide a buffer against environmental changes and increase the population's ability to adapt.

Which of the following is NOT a management strategy for invasive species?

  1. Prevention of introduction.

  2. Early detection and rapid response.

  3. Control and eradication.

  4. Restoration of native habitats.


Correct Option: D
Explanation:

Prevention of introduction, early detection and rapid response, and control and eradication are all common management strategies for invasive species. Restoration of native habitats, while important for the conservation of native species, is not typically considered a direct management strategy for invasive species.

Which of the following is an example of an invasive species?

  1. The common dandelion.

  2. The giant panda.

  3. The African elephant.

  4. The cane toad.


Correct Option: D
Explanation:

The cane toad is an example of an invasive species, as it has been introduced to new areas outside of its native range and has caused significant ecological and economic damage.

Which of the following is NOT a factor that can contribute to the success of an invasive species?

  1. High reproductive rate.

  2. Lack of natural predators.

  3. Ability to adapt to new environments.

  4. Genetic diversity.


Correct Option: D
Explanation:

High reproductive rate, lack of natural predators, and ability to adapt to new environments are all factors that can contribute to the success of an invasive species. Genetic diversity, while important for the survival and adaptation of populations, is not typically considered a direct factor in the success of invasive species.

Which of the following is NOT a consequence of reduced genetic diversity in a population?

  1. Increased susceptibility to disease.

  2. Reduced ability to adapt to environmental changes.

  3. Increased risk of inbreeding depression.

  4. Increased genetic diversity in future generations.


Correct Option: D
Explanation:

Reduced genetic diversity in a population can have a number of negative consequences, including increased susceptibility to disease, reduced ability to adapt to environmental changes, and increased risk of inbreeding depression. However, it does not typically lead to increased genetic diversity in future generations.

Which of the following is NOT a benefit of genetic diversity in a population?

  1. Increased resistance to disease.

  2. Increased ability to adapt to environmental changes.

  3. Increased risk of inbreeding depression.

  4. Increased productivity.


Correct Option: C
Explanation:

Genetic diversity in a population can provide a number of benefits, including increased resistance to disease, increased ability to adapt to environmental changes, and increased productivity. However, it does not typically lead to an increased risk of inbreeding depression.

Which of the following is NOT a method for conserving genetic diversity?

  1. Habitat protection.

  2. Captive breeding programs.

  3. Gene banks.

  4. Artificial selection.


Correct Option: D
Explanation:

Habitat protection, captive breeding programs, and gene banks are all methods for conserving genetic diversity. Artificial selection, while it can be used to improve certain traits in a population, is not typically considered a method for conserving genetic diversity.

Which of the following is NOT a factor that can contribute to the loss of genetic diversity in a population?

  1. Habitat loss and fragmentation.

  2. Overexploitation.

  3. Pollution.

  4. Natural selection.


Correct Option: D
Explanation:

Habitat loss and fragmentation, overexploitation, and pollution are all factors that can contribute to the loss of genetic diversity in a population. Natural selection, while it can lead to the loss of certain alleles from a population, is not typically considered a major factor in the loss of genetic diversity.

Which of the following is NOT a benefit of genetic diversity in an ecosystem?

  1. Increased stability and resilience.

  2. Increased productivity.

  3. Increased susceptibility to disease.

  4. Increased ability to adapt to environmental changes.


Correct Option: C
Explanation:

Genetic diversity in an ecosystem can provide a number of benefits, including increased stability and resilience, increased productivity, and increased ability to adapt to environmental changes. However, it does not typically lead to an increased susceptibility to disease.

Which of the following is NOT a consequence of the loss of genetic diversity in an ecosystem?

  1. Reduced stability and resilience.

  2. Reduced productivity.

  3. Increased resistance to disease.

  4. Increased risk of extinction.


Correct Option: C
Explanation:

The loss of genetic diversity in an ecosystem can have a number of negative consequences, including reduced stability and resilience, reduced productivity, and increased risk of extinction. However, it does not typically lead to an increased resistance to disease.

Which of the following is NOT a management strategy for conserving genetic diversity in an ecosystem?

  1. Habitat protection.

  2. Captive breeding programs.

  3. Gene banks.

  4. Artificial selection.


Correct Option: D
Explanation:

Habitat protection, captive breeding programs, and gene banks are all management strategies for conserving genetic diversity in an ecosystem. Artificial selection, while it can be used to improve certain traits in a population, is not typically considered a management strategy for conserving genetic diversity.

Which of the following is NOT a factor that can contribute to the loss of genetic diversity in an ecosystem?

  1. Habitat loss and fragmentation.

  2. Overexploitation.

  3. Pollution.

  4. Natural selection.


Correct Option: D
Explanation:

Habitat loss and fragmentation, overexploitation, and pollution are all factors that can contribute to the loss of genetic diversity in an ecosystem. Natural selection, while it can lead to the loss of certain alleles from a population, is not typically considered a major factor in the loss of genetic diversity.

Which of the following is NOT a benefit of genetic diversity in an ecosystem?

  1. Increased stability and resilience.

  2. Increased productivity.

  3. Increased susceptibility to disease.

  4. Increased ability to adapt to environmental changes.


Correct Option: C
Explanation:

Genetic diversity in an ecosystem can provide a number of benefits, including increased stability and resilience, increased productivity, and increased ability to adapt to environmental changes. However, it does not typically lead to an increased susceptibility to disease.

Which of the following is NOT a consequence of the loss of genetic diversity in an ecosystem?

  1. Reduced stability and resilience.

  2. Reduced productivity.

  3. Increased resistance to disease.

  4. Increased risk of extinction.


Correct Option: C
Explanation:

The loss of genetic diversity in an ecosystem can have a number of negative consequences, including reduced stability and resilience, reduced productivity, and increased risk of extinction. However, it does not typically lead to an increased resistance to disease.

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