2.1.1 Interrelationships of biotic and abiotic components

Which of the following best describes the Biosphere?

• A shell approximately 20km wide surrounds the earth and stretches from the deepest oceans to the highest mountains. This includes all life on earth

• A shell approximately 20km wide surrounds the earth. Inside of this is a gaseous envelope of air surrounding the earth.

• All water on earth including water vapor in the atmosphere, oceans, rivers, lakes, and ice caps.

• The soil and rocky crust of the earth, its mantle and core of molten rock.

Which of the following best describes the Lithosphere?

• A shell approximately 20km wide surrounds the earth and stretches from the deepest oceans to the highest mountains.

• The soil and rocky crust of the earth, its mantle and core of molten rock.

• All water on earth including water vapor in the atmosphere, oceans, rivers, lakes, and ice caps.

• A gaseous envelope of air surrounding the earth.

Which of the following best describes the Hydrosphere?

• A shell approximately 20km wide surrounds the earth and stretches from the deepest oceans to the highest mountains.

• The soil and rocky crust of the earth, its mantle and core of molten rock.

• A shell around the earth that includes all life on earth

• All water on earth including water vapor in the atmosphere, oceans, rivers, lakes, and ice caps.

What is the definition of 'Abiotic' components?

• Living components of an ecosystem, they require oxygen to survive.

• Non-living components of an ecosystem, they don’t require oxygen.

• A group of organisms of the same type.

• The interaction occurring between organisms and their environment.

Which of the following is an example of a 'Biotic' component?

• Soil

• Rock

• Eucalypt

• Water

What is the meaning of 'Population' in the context of biotic components that make up an ecosystem?

• One individual living thing.

• A group of organisms of the same species living together in one area.

• A number of populations of different species living together in a particular environment.

• The interaction occurring between organisms and their environment.

What does a food chain show?

• The interaction occurring between organisms and their environment.

• The direct transfer of energy from one organism to another.

• A number of populations of different species living together in a particular environment.

• A group of organisms of the same species living together in one area.

Which of the following is an example of a producer in an ecosystem?

• Grey Kangaroo

• Snake

• Plants

• Fungi

What is the primary role of decomposers in an ecosystem?

• Capture the Sun's energy and photosynthesize

• Consume the producers for energy

• Break down dead organic matter and return nutrients to the soil

• Consume the level before for energy

Which of the following organisms is a primary consumer?

• Snake

• Kangaroo

• Owl

• Fungi