Interaction of Organisms and Earth's Systems

Multiple Choice

Why is ammonification an important step in the nitrogen cycle?

• It helps plants absorb nitrogen directly from the air

• It converts organic nitrogen into a form usable by plants

• It removes nitrogen from the soil

• It produces oxygen for the atmosphere

Open Ended

How does the composition of Earth's atmosphere influence life on our planet?

Multiple Choice

Which of the following is NOT one of the four categorical areas that make up planet Earth in biogeochemical cycles?

• Biosphere

• Hydrosphere

• Lithosphere

• Stratosphere

Multiple Choice

Which of the following birds is native to New Zealand according to the study of biogeography?

• Ostrich

• Rhea

• Kiwi

• Emu

Multiple Select

Select all processes that are part of the carbon cycle as shown in the diagram.

• Photosynthesis

• Breathing animals

• Denitrification

• Burning of fuel

Open Ended

Explain how biogeochemical cycles and the carbon cycle are related in the context of matter transport and transformation on Earth.

Fill in the Blank

Denitrification is the reduction of oxidized forms of nitrogen, ultimately resulting in molecular ___.

Open Ended

Describe how feedback mechanisms can influence the productivity of a system, providing an example from biology.

Multiple Choice

Which part of the Earth system includes rocks, minerals, landforms, and the processes that shape Earth's surface?

• Hydrosphere

• Geosphere

• Atmosphere

• Biosphere

Multiple Choice

What is included in the hydrosphere?

• Only oceans

• Only groundwater

• All water on Earth, including oceans, surface water, groundwater, and glaciers

• Only glaciers

Multiple Select

Which of the following are processes involved in the nitrogen cycle?

• Nitrogen fixation

• Denitrification

• Photosynthesis

• Nitrification

Fill in the Blank

Ocean acidification is caused by the absorption of ___ dioxide by the ocean.

Open Ended

Explain how oxidation involves the loss of electrons and provide an example from the given reaction.

Multiple Choice

What are the two main processes that drive the oxygen cycle in the biosphere and atmosphere?

• Photosynthesis and cellular respiration

• Nitrogen fixation and denitrification

• Oxidation and reduction

• Evaporation and condensation

Open Ended

How does the composition of Earth's atmosphere, as described in the lesson, influence the nitrogen cycle?

Multiple Choice

What role do bacteria play in the process of ammonification within the nitrogen cycle?

• They convert organic nitrogen into inorganic ammonium

• They fix atmospheric nitrogen into the soil

• They convert ammonium into nitrate

• They release nitrogen gas into the atmosphere

Multiple Choice

Which of the following best describes the process of ecological succession as shown in the diagram?

• The gradual change in the types of species present in a community over time

• The immediate replacement of one species by another

• The extinction of all species in a community

• The migration of species from one community to another