Cycles Test

Front

What is an energy pyramid?

Back

An energy pyramid is a graphical representation that shows the flow of energy at each trophic level in an ecosystem, illustrating how energy decreases as it moves from producers to apex predators.

Front

How does energy flow in a food chain?

Back

Energy flows from producers (autotrophs) to primary consumers (herbivores), then to secondary consumers (carnivores), and finally to apex predators.

Front

What are producers in an ecosystem?

Back

Producers are organisms, typically plants and algae, that can make their own food through photosynthesis and serve as the base of the food chain.

Front

What are biogeochemical cycles?

Back

Biogeochemical cycles are natural processes that recycle chemical elements and water through both living (biotic) and non-living (abiotic) components of the ecosystem.

Front

What role does the sun play in the water cycle?

Back

The sun provides the energy necessary for the water cycle, driving processes like evaporation and transpiration.

Front

What happens to organisms that do not decompose naturally?

Back

Organisms that do not decompose can be buried and eventually become fossil fuels, such as coal, oil, or natural gas.

Front

What is a food web?

Back

A food web is a complex network of interconnected food chains in an ecosystem, showing how different organisms are related through feeding relationships.

Front

What is the difference between a food chain and a food web?

Back

A food chain is a linear sequence of organisms where each is eaten by the next, while a food web is a more complex representation that includes multiple food chains.

Front

What is the significance of decomposers in an ecosystem?

Back

Decomposers break down dead organic matter, recycling nutrients back into the soil, which supports plant growth and maintains ecosystem health.

Front

What is an apex predator?

Back

An apex predator is a top-level predator in an ecosystem that has no natural enemies and is at the top of the food chain.