ES Unit 2 Test Review

Front

What biome is characterized by being the coldest, having low biodiversity, and nitrogen-rich soil, with organisms like snowy owls and arctic foxes?

Back

Tundra

Front

What is a tertiary consumer in an ecosystem?

Back

A tertiary consumer is an organism that eats secondary consumers; for example, a hawk that eats butterflies.

Front

What is a provisioning ecosystem service?

Back

Provisioning ecosystem services are products obtained from ecosystems, such as food, fresh water, and raw materials.

Front

Which of the following is NOT a provisioning ecosystem service: Honey from wild bees, Pearls, Paper products, or Hiking scenic trails?

Back

Hiking scenic trails.

Front

If a biomass of flowers contains 100,000 units of energy, how much energy is typically transferred to the birds that eat butterflies foraging on those flowers?

Back

1,000 units of energy.

Front

What biome is found in polar latitudes and can surprisingly have bumblebees?

Back

Arctic Tundra.

Front

Define biodiversity.

Back

Biodiversity refers to the variety of life in a particular habitat or ecosystem, including the number of species, genetic diversity, and ecosystem diversity.

Front

What is the role of a primary consumer in an ecosystem?

Back

Primary consumers are organisms that eat producers (plants), such as herbivores.

Front

Explain the concept of energy transfer in an ecosystem.

Back

Energy transfer in an ecosystem refers to the flow of energy from one trophic level to another, typically decreasing by about 90% at each level.

Front

What are ecosystem services?

Back

Ecosystem services are the benefits that humans derive from ecosystems, including provisioning, regulating, cultural, and supporting services.