A Level 3 Biology Quiz About Speciation.

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| By Hollandmr
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Hollandmr
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Quizzes Created: 2 | Total Attempts: 498
Questions: 7 | Attempts: 351

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Biology Quizzes & Trivia

Evolution is believed to be continuous and scientists expect it to continue. Speciation is a study of Biology where we look at the formation if new and distinct species. How well do you know about the subject? Find out below.


Questions and Answers
  • 1. 

    Which of the following is an example of adaptive radiation in New Zealand?

    • A.

      The Kea and Kaka

    • B.

      The Pukeko and Takahe

    • C.

      The Hebes

    • D.

      The Chatham Island Robin

    • E.

      The Brown and Green Gecko

    Correct Answer
    A. The Kea and Kaka
    Explanation
    An example of adaptive radiation in New Zealand is the radiation of bird species, particularly the honeyeaters and parrots, including the Kea and Kaka. These birds have diversified and adapted to various ecological niches within New Zealand, leading to their widespread distribution and specialization. Therefore, the correct answer is:
    The Kea and Kaka

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  • 2. 

    Which of the following is an example of ecological speciation?

    • A.

      The Kea and the Kaka

    • B.

      The Pukeko and the Takahe

    • C.

      The Hebes

    • D.

      The Chatham Island Robin

    • E.

      The Brown and Green Gecko

    Correct Answer
    E. The Brown and Green Gecko
    Explanation
    Ecological speciation refers to the formation of new species due to divergent natural selection pressures in different environments. The Brown and Green Gecko is an example of ecological speciation because these geckos have adapted to different habitats and developed distinct traits to survive in their respective environments. This divergence in traits and adaptation to different ecological niches has led to the formation of separate species.

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  • 3. 

    In convergent evolution there is...

    • A.

      Both phenotypic and genetic convergence

    • B.

      Phenotypic and genetic divergence

    • C.

      Phenotypic convergence and genetic divergence

    • D.

      Genotypic convergence and genetic divergence

    Correct Answer
    C. Phenotypic convergence and genetic divergence
    Explanation
    at the level of DNA all evolution is divergent

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  • 4. 

    Polyploidy is an example of ________________________ sympatric speciation.

    Correct Answer
    instantaneous
    Explanation
    Polyploidy is an example of instantaneous sympatric speciation because it occurs when an organism gains one or more extra sets of chromosomes in a single generation, leading to the formation of a new species. This process can happen suddenly and in the same geographic location, without the need for geographic isolation or gradual genetic changes. Polyploidy can result in reproductive isolation and the formation of a new species, making it an example of instantaneous sympatric speciation.

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  • 5. 

    An organism that has gained an extra set of chromosomes from another species is an example of...

    Correct Answer
    allopolyploidy
    Explanation
    Allopolyploidy refers to the condition where an organism has acquired an additional set of chromosomes from a different species. This can occur through hybridization between two species, resulting in a hybrid organism with a doubled chromosome number. The presence of this extra set of chromosomes can lead to genetic variation and potentially new traits in the organism. Therefore, an organism that has gained an extra set of chromosomes from another species is an example of allopolyploidy.

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  • 6. 

    Hybrid inviability is an example of a ______________________ reproductive isolating mechanism.

    Correct Answer
    post-zygotic
    postzygotic
    post zygotic
    Explanation
    Hybrid inviability is a type of reproductive isolating mechanism that occurs after the formation of a zygote. It refers to the situation where the offspring of two different species fail to develop properly and cannot survive to reproductive age. This mechanism prevents gene flow between species by reducing the fitness of hybrid individuals. Therefore, "post-zygotic," "postzygotic," or "post zygotic" all accurately describe hybrid inviability as a reproductive isolating mechanism.

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  • 7. 

    Which of these reproductive isolating mechanism are pre-zygotic...

    • A.

      Hybrid sterility

    • B.

      Mechanical differences

    • C.

      Behavioural differences

    • D.

      Habitat Difference

    • E.

      Hybrid Breakdown

    Correct Answer(s)
    B. Mechanical differences
    C. Behavioural differences
    D. Habitat Difference
    Explanation
    Pre-zygotic reproductive isolating mechanisms occur before the formation of a zygote. Mechanical differences refer to physical incompatibilities between reproductive organs, making successful mating impossible. Behavioural differences involve differences in courtship rituals or behaviors that prevent individuals from recognizing or attracting mates of different species. Habitat differences occur when species occupy different habitats, preventing them from coming into contact and mating. Therefore, mechanical differences, behavioural differences, and habitat differences are all examples of pre-zygotic reproductive isolating mechanisms. Hybrid sterility and hybrid breakdown, on the other hand, are post-zygotic mechanisms that occur after fertilization.

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  • Current Version
  • Feb 15, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 31, 2009
    Quiz Created by
    Hollandmr
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