Succession and Biochemical Cycles Quiz

succession that occurs in an area with no soil

• ecological succession 
• primary succession 
• secondary succession
• pioneer speciles

The picture shows what type of succession?

• primary
• secondary
• tertiary
• quadanary

What role do nitrogen fixing bacteria (prokaryotes) play in the cycling of nitrogen through ecosystems? 

• they release nitrogen into the atmosphere when they replicate their DNA
• they convert sunlight into chemical energy which is then stored in nitrogen
• they capture nitrogen from the atmosphere as a gas and convert it into ammonia, or nitrate, forms which plants can use
• they convert ammonia from animal feces and urine into forms that plants can use

Which processes from the carbon cycle removes carbon from the atmosphere? 

• animal respiration
• plant respiration
• combustion
• photosynthesis

The natural cycling of ___________ and ___________ occur during photosynthesis and respiration. 

• oxygen and nitrogen
• oxygen and carbon dioxide
• carbon dioxide and nitrogen
• nitrogen and protein

Imagine a rabbit dies in the forest. All living things are made up of carbon. Which of the following processes will return the carbon from the rabbit back to the atmosphere?

• condensation
• photosynthesis
• nitrification
• decomposition

Which of the following would lead to an increase in carbon dioxide in the atmosphere? 

• an increase in photosynthesis
• a decrease in animal respiration
• an increase in the combustion of fossil fuels
• a decrease in the decomposition of dead plants and animals

Which of the following is the process in which water vapor is cooled and becomes liquid water again to form clouds?

• infiltration
• condensation
• transpiration
• evaporation

The following definition is for which process of the water cycle: This is the discharge of water vapor from the leaves of plants into the atmosphere.

• infiltration
• evaporation
• transpiration
• percolation

Which is an example of the role photosynthesis plays in cycling carbon?

• a dead leaf releases carbon into soil when it falls
• a tree releases carbon dioxide when it is burned
• a bacterium converts carbon in soil into biomass
• a shrub converts carbon dioxide into carbohydrates