Ecosystem

Herbivores are called

• Tertiary producers

• Primary consumers

• primary producers

• Secondary consumers

Which 2 answers are true about stable ecosystems?

• Healthy ecosystems have a stable balance between producer and consumer populations.

• Stable ecosystems have more consumers than they can support.

• Healthy ecosystems have high biodiversity.

• Stable ecosystems have too many producers.

What is the primary source of energy in an ecosystem?

• Plants

• Animals

• Sun

Music, art, and architecture born from interactions with nature are all examples of what type of ecosystem service?

• Provisioning

• Regulating

• Cultural

• Supporting

The aesthetic value of an ecosystem provides

• a supporting service.

• a regulating service.

• an intrinsic value.

• a cultural service.

This pyramid uses the total dry weight of living organisms per area. What is the name of pyramid ??

• Pyramid of numbers

• Pyramid of biomass

• Pyramid of energy

• All incorrect

Organisms only hold on to _____ percent of the energy they ingest.

• 100

• 10

• 25

• 55

What is the name of pyramid ??

• Pyramid of numbers

• Pyramid of biomass

• Pyramid of energy

• All of these

An organism that uses sunlight to create its own food is known as a:

• Autotroph

• Heterotroph

• Consumer

• Decomposer

Bacteria decomposing waste is an example of what type of ecosystem service?

• economic

• regulating

• provisioning

• supporting