Introduction to Ecosystems Quiz
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Questions and Answers

What is an ecosystem?

  • A community of living organisms only
  • A community of living and non-living components interacting with each other (correct)
  • A population of the same species
  • A species that can interbreed and produce fertile offspring

    • What is an organism?

  • A community of different species
  • A living thing that can function on its own (correct)
  • A non-living component of the environment
  • A living thing that cannot function on its own

    • What is meant by interspecific?

  • Between different populations of the same species
  • Within a single organism
  • Between different species (correct)
  • Between a living and non-living component

    • What is a population?

    <p>Organisms of the same species that interact with each other</p> Signup and view all the answers

    What is an ecological niche?

    <p>A particular area within a habitat occupied by an organism, as well as the function of that organism within its ecological community</p> Signup and view all the answers

    What is a characteristic of a niche?

    <p>The specific adaptations that a species has acquired through evolution</p> Signup and view all the answers

    What is the main difference between specialist species and generalist species?

    <p>Generalist species have a wider range of food resources, while specialist species have a narrow range.</p> Signup and view all the answers

    What is an example of commensalism?

    <p>A bird building a nest in a tree.</p> Signup and view all the answers

    What is the driving force of evolution?

    <p>Competition</p> Signup and view all the answers

    What is the term used to describe any type of close and long-term biological interaction between two different biological organisms of the same or different species?

    <p>Symbiosis</p> Signup and view all the answers

    What is the term used to describe an interaction between two species where one species is benefited, and the other species is harmed?

    <p>Parasitism</p> Signup and view all the answers

    What is the Law of Tolerance?

    <p>A law that states that the existence, abundance, and distribution of species depend on the tolerance level of each species to both physical and chemical factors.</p> Signup and view all the answers

    Study Notes

    Definitions and Concepts

    • Ecosystem: A community of living organisms, their interactions, and their physical environment, functioning together as a system.
    • Organism: Any individual living entity that can respond to stimuli, reproduce, grow, and maintain homeostasis.
    • Interspecific: Refers to interactions, relationships, or competition occurring between different species within an ecosystem.
    • Population: A group of individuals of the same species living in a specific area, capable of interbreeding and producing fertile offspring.
    • Ecological Niche: The role and position a species has in its environment, encompassing its habitat, resource use, and interactions with other organisms.

    Characteristics and Interactions

    • Characteristic of a Niche: Includes resource availability, habitat requirements, behaviors, and the interactions with other species, which together define how an organism fits into its environment.
    • Specialist Species vs. Generalist Species: Specialist species thrive in a narrow ecological niche, relying on specific resources; generalist species can adapt to a variety of environments and resources.

    Ecological Relationships

    • Example of Commensalism: A barnacle attaching to a whale, benefiting by gaining mobility and access to food without impacting the whale.
    • Driving Force of Evolution: Natural selection, whereby organisms better adapted to their environment tend to survive and reproduce.

    Biological Interactions

    • Term for Long-term Biological Interactions: Symbiosis, which describes the close, long-term interaction between two different biological organisms.
    • Term for Harmful Interaction: Parasitism, where one species benefits at the expense of the other, often harming the host.

    Ecological Principles

    • Law of Tolerance: A principle stating that the existence, abundance, and distribution of a species are determined by environmental conditions; species can thrive only within a certain range of these conditions.

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    Description

    Test your understanding of ecosystems, biological populations, and communities. Learn about organisms, species, and interspecific interactions. Assess your knowledge of ecosystems and their components.

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