Primary Productivity and Biodiversity

Front

What is primary productivity?

Back

The rate at which solar energy is transformed into organic compounds.

Front

Which biome is least productive in terms of both aquatic and terrestrial ecosystems?

Back

Desert.

Front

About ___ percent of the planet is covered in ocean.

Back

70.

Front

How is primary productivity measured?

Back

Kilocalories per meter squared per year.

Front

Which factor contributes to high net primary productivity?

Back

High nutrient availability.

Front

What is net primary productivity (NPP)?

Back

The amount of organic matter produced by photosynthesis minus the amount used by respiration.

Front

What role do phytoplankton play in aquatic ecosystems?

Back

They are primary producers that convert sunlight into energy through photosynthesis.

Front

What is the difference between gross primary productivity (GPP) and net primary productivity (NPP)?

Back

GPP is the total amount of energy captured by photosynthesis, while NPP is GPP minus the energy used in respiration.

Front

Name a biome with high primary productivity.

Back

Swamps and marshes.

Front

What factors influence primary productivity in terrestrial ecosystems?

Back

Temperature, moisture, and nutrient availability.