APES Unit 1 Review

Front

What is the primary reason phytoplankton live near the surface of the water?

Back

Sunlight cannot reach great depths and they need it for photosynthesis.

Front

What two major factors are used to classify climates?

Back

Precipitation and temperature.

Front

Why are there usually no more than five trophic levels in a food chain?

Back

Energy is lost at each trophic level.

Front

What is the total quantity of all living matter in an area called?

Back

Biomass.

Front

Which ecosystem has the lowest productivity?

Back

Open Ocean.

Front

Define 'Biomass'.

Back

The total mass of all living organisms in a given area.

Front

What is 'Net Primary Productivity'?

Back

The rate at which all the autotrophs in an ecosystem produce net useful chemical energy.

Front

Explain the significance of 'Trophic Levels'.

Back

Trophic levels represent the hierarchical levels in an ecosystem, comprising producers, primary consumers, secondary consumers, and so on.

Front

What role do 'Producers' play in an ecosystem?

Back

Producers convert solar energy into chemical energy through photosynthesis, forming the base of the food chain.

Front

What is the difference between 'Ecosystem' and 'Biome'?

Back

An ecosystem is a community of living organisms and their physical environment, while a biome is a larger area characterized by specific climate conditions and types of organisms.