APES Fall Review

Front

What are examples of natural ecosystem disruptions?

Back

Wildfires, floods, severe storms like hurricanes, earthquakes.

Front

What happens during Stage 4 of the demographic transition?

Back

Population growth levels off then declines as birth rates equal and then fall below the death rate.

Front

How does the removal of earthworms from the food chain affect other organisms?

Back

The number of crayfish will decrease.

Front

Which country exemplifies phase 4 of a demographic transition?

Back

Japan.

Front

If a producer produces 10 kilograms of tissue, how much energy does it provide to a primary consumer?

Back

1 kilogram.

Front

What is the energy transfer efficiency from a producer to a primary consumer?

Back

About 10%.

Front

What is the role of producers in an ecosystem?

Back

Producers convert sunlight into energy through photosynthesis.

Front

Define demographic transition.

Back

The model that describes the transition of a country from high birth and death rates to low birth and death rates as it develops.

Front

What is the significance of biodiversity in ecosystems?

Back

Biodiversity enhances ecosystem resilience and stability.

Front

What is the impact of invasive species on native ecosystems?

Back

Invasive species can outcompete native species for resources, leading to declines in native populations.