Biology Unit 3 Ecology Test 2024-2025

Front

What are the nonliving factors in an ecosystem?

Back

Abiotic factors are the nonliving components of an ecosystem, such as sunlight, temperature, water, and minerals.

Front

What is the variety of living organisms in an ecosystem called?

Back

Biodiversity refers to the variety of living organisms in an ecosystem, including different species and genetic variations.

Front

What are organisms that have major impacts on the ecosystem they live in?

Back

Keystone species are organisms that play a crucial role in maintaining the structure of an ecological community.

Front

What are the living factors in an ecosystem?

Back

Biotic factors are the living components of an ecosystem, including plants, animals, and microorganisms.

Front

What is the role of bacteria in the nitrogen cycle?

Back

Bacteria take nitrogen from the atmosphere into the soil and convert it into forms usable by plants, then return it to the atmosphere.

Front

Define ecosystem.

Back

An ecosystem is a community of living organisms interacting with their physical environment.

Front

What is an example of an abiotic factor?

Back

An example of an abiotic factor is sunlight, which affects the growth of plants.

Front

What is the difference between biotic and abiotic factors?

Back

Biotic factors are living components of an ecosystem, while abiotic factors are nonliving components.

Front

What is the significance of biodiversity in an ecosystem?

Back

Biodiversity contributes to ecosystem resilience, productivity, and stability.

Front

What are primary consumers?

Back

Primary consumers are organisms that eat producers (plants) in an ecosystem.