9.05 Succession and 9.06-9.07 Biogeochemical Cycles

Multiple Choice

Which of the following accurately describes infiltration as part of the water cycle?

• water evaporating from the soil.

• water being stored in lakes and rivers.

• water entering the ground from the surface

• water flowing over the surface of the ground.

Multiple Choice

Which of the following is a major carbon compound found in the carbon cycle?

• Glucose (C6H12O6)
• Carbon dioxide (CO2)
• Ozone (O3)
• Methane (CH4)

Multiple Choice

What type of organism plays an important role in the nitrogen cycle?

• Nitrogen-fixing bacteria
• Decomposing fungi
• Photosynthetic algae
• Predatory insects

Multiple Choice

Which sphere does not contain phosphorus?

• Hydrosphere
• Geosphere

• Atmosphere
• Biosphere

Multiple Choice

What environmental factor needs to be absent for primary succession to occur?

• Soil

• Temperature
• Sunlight
• Water

Open Ended

What are the pioneer species that begin the process of primary and secondary succession?

Multiple Choice

What is a climax community?

• a stable and mature ecological community that has reached a steady state.

• an area with no vegetation.

• the type of living organism that first colonizes an area

• A climax community is a temporary ecological stage.