Gr 8 Natural Sciences Ch 1.2: What is ecology?
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Questions and Answers

What is the definition of ecology?

  • The study of the relationships between non-living elements
  • The scientific study of how living organisms interact with each other and their environment (correct)
  • The study of the physical environment only
  • The study of the interactions between humans and their environment

    • What is a community in ecology?

  • The global ecological system integrating all living beings and their relationships
  • A group of individuals of the same species that live in a specific area
  • A biological community of interacting organisms and their physical environment
  • All the populations of different species that live in a particular area (correct)

    • What is the term for the global ecological system integrating all living beings and their relationships?

  • Community
  • Ecosystem
  • Biosphere (correct)
  • Population

    • What is the term for a scientist who studies the relationships between organisms and their environments?

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

    What is the term for a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding?

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

    What is population ecology?

    <p>The study of populations in relation to their environment, including environmental influences on population density and distribution, age structure, and variations in population size</p> Signup and view all the answers

    What is the term for a biological community of interacting organisms and their physical environment?

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

    At which level of ecological organization is a group of individuals of the same species that live in a specific area at a specific time and can interbreed found?

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

    What is the smallest collective unit of living organisms studied in ecology?

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

    What is the term for the study of interactions between different populations in a specific area?

    <p>Community ecology</p> Signup and view all the answers

    What is the largest collective unit of living organisms and their environment?

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

    What type of factors make up the non-living environment in an ecosystem?

    <p>Abiotic factors</p> Signup and view all the answers

    Why might the hippo population in the St. Lucia estuary decrease?

    <p>Lack of water</p> Signup and view all the answers

    What is the term for the study of how energy flows and nutrients cycle between living and non-living components?

    <p>Ecosystem ecology</p> Signup and view all the answers

    What is the reason why the zebra in Kruger National Park and those in Hluhluwe-Umfolozi game reserve are different populations?

    <p>They live in different areas</p> Signup and view all the answers

    What is the term for the global sum of all ecosystems?

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

    What is the main focus of an ecologist's study?

    <p>The interactions between organisms and their environment</p> Signup and view all the answers

    Which of the following is an example of a population?

    <p>A group of individuals of the same species living in the same area at the same time</p> Signup and view all the answers

    What is the term for the study of how living organisms interact with each other and their environment?

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

    What is the level of ecological organization that includes a group of different species living in the same area?

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

    What is the term for the non-living components of an ecosystem?

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

    Which of the following is an example of an ecosystem?

    <p>A biological community of interacting organisms and their physical environment</p> Signup and view all the answers

    What is the term for the interactions between organisms and their environment?

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

    What is the main difference between a population and a community?

    <p>A population is a group of organisms of the same species, while a community is a group of different species</p> Signup and view all the answers

    What is the primary focus of community ecology?

    <p>The study of feeding relationships between different species</p> Signup and view all the answers

    What is the main difference between an ecosystem and a community?

    <p>The presence of abiotic factors in an ecosystem</p> Signup and view all the answers

    What is an example of a factor that can influence the size of a population?

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

    Why might the impalas in a game reserve be considered a population?

    <p>Because they are all of the same species</p> Signup and view all the answers

    What is the term for the study of large-scale ecological and environmental processes?

    <p>Biosphere ecology</p> Signup and view all the answers

    Why might the rapid growth of the zebra population in Kruger National Park be attributed to?

    <p>Increased food availability</p> Signup and view all the answers

    What is the main difference between a population of zebras in Kruger National Park and a population of zebras in Hluhluwe-Umfolozi game reserve?

    <p>The location of the zebras</p> Signup and view all the answers

    What would happen to the hippo population in the St. Lucia estuary if the river dried up?

    <p>The population would decrease</p> Signup and view all the answers

    What is the primary focus of population ecology?

    <p>To understand how environmental factors influence population density and distribution</p> Signup and view all the answers

    Which level of ecological organization includes a group of different species living in the same area?

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

    What is the main difference between a population of impalas in a game reserve and a population of impalas in another game reserve?

    <p>They are reproductively isolated from each other</p> Signup and view all the answers

    What is the term for the study of how living organisms interact with each other and their environment?

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

    Which of the following would NOT be considered a factor influencing population growth?

    <p>Geographical location</p> Signup and view all the answers

    What is the term for the non-living components of an ecosystem?

    <p>Abiotic factors</p> Signup and view all the answers

    At which level of ecological organization would you study the interactions between different populations in a specific area?

    <p>Community ecology</p> Signup and view all the answers

    What is the term for the study of large-scale ecological and environmental processes?

    <p>Landscape ecology</p> Signup and view all the answers

    What is the primary focus of ecosystem ecology?

    <p>Examining the flow of energy and nutrients between living and non-living components</p> Signup and view all the answers

    Why might the population of impalas in a game reserve decrease?

    <p>All of the above could be possible reasons</p> Signup and view all the answers

    What is the main difference between a population and a community?

    <p>A population is a group of similar individuals, while a community is a group of different species</p> Signup and view all the answers

    What is the level of ecological organization that includes all living beings and their interactions with the environment?

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

    What is the primary focus of biosphere ecology?

    <p>Investigating large-scale ecological and environmental processes</p> Signup and view all the answers

    What is the main difference between the zebra population in Kruger National Park and the zebra population in Hluhluwe-Umfolozi game reserve?

    <p>They are separated by geography</p> Signup and view all the answers

    What is the primary focus of community ecology?

    <p>Studying the interactions between different populations in a specific area</p> Signup and view all the answers

    What is the main difference between a community and an ecosystem?

    <p>A community is a group of different species, while an ecosystem includes non-living components</p> Signup and view all the answers

    What is the primary focus of an ecologist's study?

    <p>The relationships between organisms and their physical surroundings.</p> Signup and view all the answers

    What level of ecological organization includes multiple populations of different species?

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

    What is the main difference between a population and a community?

    <p>A community includes multiple species, while a population consists of a single species.</p> Signup and view all the answers

    What is the term for the study of how energy flows and nutrients cycle between living and non-living components?

    <p>Ecosystem ecology</p> Signup and view all the answers

    What is the main difference between two populations of the same species living in different areas?

    <p>They have different physical surroundings.</p> Signup and view all the answers

    What level of ecological organization is the largest collective unit of living organisms and their environment?

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

    What is the term for the non-living components of an ecosystem?

    <p>Abiotic factors</p> Signup and view all the answers

    What is the primary focus of ecosystem ecology?

    <p>The study of how energy flows and nutrients cycle between living and non-living components.</p> Signup and view all the answers

    What is the primary focus of studying a community in ecology?

    <p>To study the feeding relationships between different populations</p> Signup and view all the answers

    What would be the most likely cause of a decrease in the hippo population in the St. Lucia estuary?

    <p>Lack of water</p> Signup and view all the answers

    What is the primary difference between a population and a community?

    <p>A population is a group of similar individuals, while a community is a group of different species</p> Signup and view all the answers

    What is the level of ecological organization that includes all living beings and their interactions with the environment?

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

    What is the primary focus of ecosystem ecology?

    <p>To analyze the energy flow and nutrient cycle within a system</p> Signup and view all the answers

    Why might the zebra population in Kruger National Park be different from the zebra population in Hluhluwe-Umfolozi game reserve?

    <p>Because they live in different areas</p> Signup and view all the answers

    What is an example of a factor that can influence the size of a population?

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

    What is the primary focus of biosphere ecology?

    <p>To examine the biogeochemical cycles and climate change</p> Signup and view all the answers

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