Levels of Organization in the Environment

Which of the following is an example of an ecosystem?

• A single tree

• A pond

• A rock

• A cloud

What does biodiversity refer to?

• The variety of living organisms in an ecosystem

• The number of rocks in an ecosystem

• The amount of water in an ecosystem

• The temperature of an ecosystem

Which of the following is NOT a level of organization in an ecosystem?

• Individual

• Population

• Community

• Molecule

What is the primary source of energy in most ecosystems?

• Sunlight

• Water

• Air

• Soil

What is the term used to describe the variety of different species in an ecosystem?

• Biodiversity

• Ecosystem

• Population

• Community

Which of the following is an example of a terrestrial ecosystem?

• A coral reef

• A rainforest

• A lake

• An ocean

What is the smallest unit of organization in an ecosystem?

• Individual

• Population

• Community

• Ecosystem

Which of the following is a threat to biodiversity?

• Habitat destruction

• Increased sunlight

• Decreased temperature

• Improved air quality

What is the term used to describe the interactions between different species in an ecosystem?

• Competition

• Predation

• Symbiosis

• Mutualism

Which of the following is an example of a natural ecosystem?

• A city park

• A farm

• A zoo

• A desert