Ecosystems and Biomes Flashcards
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Questions and Answers

What is an ecosystem?

  • The study of animals in their habitats
  • The basic relationships of living organisms with their environment (correct)
  • A component of food chains
  • A method of measuring biodiversity

    • What is the role or position of an organism in an ecosystem called?

    ecological niche

    What term is used to refer to all the animal life of a region?

    fauna

    What term describes all the plant life of a region?

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

    In a forest ecosystem, a robin and a squirrel live in the same tree. The two organisms _____

    <p>share the same habitat</p> Signup and view all the answers

    Which of the following statements is TRUE about ecosystems?

    <p>Ecosystems can be large</p> Signup and view all the answers

    What are the principles of ecology about?

    <p>Living things affect other living things and their environment</p> Signup and view all the answers

    Which of the following is NOT one of the major principles of ecology?

    <p>Ecological systems often remain in balance if only one factor is altered</p> Signup and view all the answers

    Which of the following is a biotic factor in an ecosystem?

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

    Animals that are members of different species and share a habitat peacefully ______.

    <p>likely have different ecological niches</p> Signup and view all the answers

    Which of the following factors determine conditions in a biome?

    <p>All of the above</p> Signup and view all the answers

    Climatic conditions in a biome are affected by _____ and _____.

    <p>latitude; altitude</p> Signup and view all the answers

    Which of the following statements is true?

    <p>A niche is the role an organism has in an ecosystem</p> Signup and view all the answers

    Which of the following statements is true?

    <p>All the populations in an ecosystem form the community</p> Signup and view all the answers

    Match the following biomes with their descriptions:

    <p>1 = desert 2 = coniferous forest 3 = rainforest 4 = tundra 5 = temperate deciduous forest 6 = grasslands</p> Signup and view all the answers

    Study Notes

    Ecosystems

    • An ecosystem comprises interacting communities of plants, animals, bacteria, and their nonliving environment, creating a cycle of relationships.
    • Ecosystems can vary greatly in size and include both living (biotic) and nonliving (abiotic) components.

    Ecological Niche

    • Every organism has a specific ecological niche defined by its role within an ecosystem.

    Fauna and Flora

    • Fauna refers to the diverse animal life present in a given region.
    • Flora denotes the variety of plant life found in a particular area.

    Habitat and Interactions

    • Species sharing a habitat, such as a robin and a squirrel in a tree, coexist in a shared environment but likely fulfill different ecological niches.

    Principles of Ecology

    • Organisms and their environments are interconnected; changes in one can significantly impact others.
    • Ecosystems consist of varying populations, communities, and their relationships within environments.
    • Energy and materials essential for life originate from the nonliving environment, highlighting the importance of recycling within ecosystems.
    • The balance of ecological systems can be disrupted by altering only one factor.

    Biotic and Abiotic Factors

    • Biotic factors include all living components, like plants.
    • Abiotic factors are the nonliving conditions affecting ecosystems, including temperature, rainfall, and sunlight.

    Conditions in Biomes

    • Important factors influencing biome conditions include latitude and altitude which determine climatic conditions.

    Community Structure

    • An ecosystem's populations collectively form a community, reflecting interactions and dependencies among various species.

    Major Biomes Characteristics

    • The driest biome is the desert.
    • The largest biome is the coniferous forest.
    • Rainforests exhibit the greatest diversity of species, while tundras have the least.
    • Temperate deciduous forests experience four distinct seasons.
    • Grasslands are often utilized for agricultural purposes.

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    Description

    Test your knowledge of ecosystems and biomes with these flashcards! This quiz covers essential terms and concepts about the relationships and roles of organisms within various ecosystems and their environments. Perfect for students and anyone interested in ecology.

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