Populations and Ecosystems Vocabulary

What is the role of a scavenger in an ecosystem?

• To produce energy from sunlight

• To break down dead organisms

• To create food chains

• To consume dead animals

How do consumers obtain energy?

• By photosynthesis

• By using sunlight directly

• By decomposing organic matter

• By consuming other organisms

What is the primary function of a decomposer?

• To break down organic material

• To feed on dead animals

• To form the base of a food chain

• To produce food using sunlight

Which of the following best describes a producer?

• An organism that uses sunlight to make food

• An organism that breaks down other organisms

• An organism that consumes other organisms

• An organism that feeds on dead animals

What defines a population in an ecosystem?

• A group of different species living together

• All the ecosystems on Earth

• A group of similar organisms in the same area

• The non-living components of an environment

What is the biosphere composed of?

• All the ecosystems on Earth

• The energy flow in a food chain

• The non-living parts of an environment

• All the populations in a specific area

How is energy transferred in a food chain?

• From decomposers to scavengers

• From consumers to producers

• From producers to decomposers

• From one feeding level to another

What does ecology study?

• The production of food using sunlight

• The relationship between organisms and their environment

• The energy flow in food chains

• The breakdown of organic material

What is an energy pyramid?

• A diagram showing the loss of energy in a food chain

• A map of all the biospheres on Earth

• A chart of different ecosystems

• A structure showing the levels of a population

What encompasses everything that affects an organism?

• The community

• The biosphere

• The ecosystem

• The environment