Ecosystems Quiz 1

What is the primary source of energy for an ecological pyramid?

• The Moon

• The Sun

• The Earth's core

• Wind

Which of the following is an abiotic feature of an ecosystem?

• Plants

• Animals

• Water

• Fungi

Which term describes organisms that produce their own food using sunlight?

• Heterotroph

• Autotroph

• Decomposer

• Consumer

What is the role of a decomposer in an ecosystem?

• To produce energy from sunlight

• To consume other organisms

• To break down dead organic matter

• To compete for resources

Which of the following best defines a habitat?

• A group of different species living together

• The role an organism plays in its environment

• The physical environment where an organism lives

• A series of interconnected food chains

What is a food chain?

• A network of interconnected food webs

• A linear sequence of organisms through which nutrients and energy pass

• A group of organisms of the same species

• A community of different species

Which of the following is a biotic feature of an ecosystem?

• Soil

• Temperature

• Bacteria

• Water

What is the term for an organism that consumes other organisms for energy?

• Producer

• Autotroph

• Consumer

• Decomposer

Which of the following best describes a community in an ecosystem?

• All the abiotic factors in an area

• All the biotic factors in an area

• A single species in an area

• The physical environment of an area

What is a food web?

• A single path of energy flow in an ecosystem

• A complex network of interconnected food chains

• A group of organisms of the same species

• The physical environment where an organism lives