Biotic & Abiotic Factors

Multiple Choice

Why is it important to study both biotic and abiotic factors in an ecosystem?

• Studying only abiotic factors is sufficient for ecosystem management.
• Biotic factors have no influence on abiotic factors in an ecosystem.
• It is important to study both biotic and abiotic factors to understand their interactions and impacts on ecosystem health and management.
• Understanding only the physical environment is enough to assess ecosystem health.

Multiple Choice

Which of the following is an example of an abiotic factor in an ecosystem?

• Tree

• Fish

• Sunlight

• Mushroom

Multiple Choice

Which of the following is an example of a biotic factor in an ecosystem?

• Sunlight

• Water

• Fungi

• Rocks

Multiple Choice

Which statement best describes abiotic factors?

• They are living parts of an ecosystem.

• They are nonliving parts of an ecosystem that affect living organisms.

• They are only found in water ecosystems.

• They are always harmful to living things.

Multiple Select

Which of the following are abiotic factors?

• Sunlight

• Bacteria

• Rocks

• Air

Multiple Choice

Explain how biotic and abiotic factors depend on each other to maintain a balanced ecosystem. Give at least one example.

• An example is a forest ecosystem where trees (biotic) provide shade and reduce soil erosion (abiotic), while soil quality (abiotic) supports tree growth (biotic).
• Rivers (abiotic) provide nutrients for fish (biotic) to thrive.
• Sunlight (abiotic) has no effect on plant growth (biotic).
• Decomposers (biotic) do not influence soil quality (abiotic).

Multiple Select

Which of the following are biotic factors found in a forest ecosystem?

• Trees

• Sunlight

• Mushrooms

• Air

Multiple Choice

In a desert ecosystem, the main abiotic factor that limits plant growth is ___.

• rainfall
• drought

• snow

• flood

Multiple Choice

An ecosystem is a community of living and ___ things that interact with each other in an environment.

• nonliving
• alive

• cohabit

• driving

Multiple Choice

How do biotic and abiotic factors interact in an ecosystem?

• Biotic factors only affect other biotic factors.
• Abiotic factors do not influence living organisms.
• Biotic and abiotic factors exist independently in an ecosystem.
• Biotic and abiotic factors interact by influencing each other's survival and distribution in an ecosystem.