Organisms and Environments

An organism that produces its own food supply from inorganic compounds is called a(an)

• heterotroph
• consumer
• detritivore
• autotroph

What is the original source of almost all energy in most ecosystems?

• carbohydrates
• sunlight
• water
• carbon

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An organism that needs to eat other organisms to obtain energy is known as a:

• Autotroph
• Producer
• Consumer
• Mutualist

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The nonliving parts of an ecosystem.

• Abiotic factors

• Biotic factors

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The living portions of the ecosystem.

• Biotic factors
• Abiotic factors

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The organisms that make up a community and the nonliving parts of the environment that they interact with are a(n)

• Population

• Community

• Habitat

• Ecosystem

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Plants that convert energy from the sun are also called

• decomposers

• primary consumers

• secondary consumers

• producers

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What are the abiotic factors in this image?

• water, sunlight, dirt, air

• birds and plants

• birds, water, dirt

• plants, water

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An individual belonging to a specific species is a

• Biotic

• Community

• Organism

• Reptile

The study of how living things interact with one another and with their environment.

• Biology
• Lithology
• Ecology
• Farmacology

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