Energy and Biogeochemical Cycles

Front

What percentage of energy is lost as heat or used by organisms for survival in an energy pyramid?

Back

90%

Front

What happens to water during evaporation?

Back

Water turns from a liquid state to vapor (gas).

Front

In an energy pyramid, which level would most likely contain organisms that perform photosynthesis?

Back

The producer level (often labeled as D in diagrams).

Front

What type of organism is represented by a consumer in an ecosystem?

Back

Consumers are organisms that eat other organisms for energy.

Front

What process removes water from the atmosphere?

Back

Precipitation.

Front

What is the primary source of energy for the Earth's ecosystems?

Back

The Sun.

Front

Define the term 'biogeochemical cycle'.

Back

A biogeochemical cycle is the movement of elements and compounds through living organisms and the environment.

Front

What are the main components of the water cycle?

Back

Evaporation, condensation, precipitation, and infiltration.

Front

What role do producers play in an ecosystem?

Back

Producers convert solar energy into chemical energy through photosynthesis.

Front

What is the significance of the 10% rule in energy transfer?

Back

Only about 10% of the energy is transferred from one trophic level to the next; the rest is lost as heat.