CFA REVIEW 7th

What are the basic building blocks of tissues and organs?

• Cells

• Atoms

• Molecules

• Compounds

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What is the primary source of energy for most ecosystems?

• Wind

• Sunlight

• Water

• Soil

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Which process is responsible for converting sunlight into chemical energy in plants?

• Respiration

• Photosynthesis

• Fermentation

• Digestion

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What is the role of chloroplasts in photosynthesis?

• Absorb water

• Store nutrients

• Capture sunlight

• Release oxygen

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Which of the following is a product of photosynthesis?

• Carbon dioxide

• Oxygen

• Nitrogen

• Methane

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What is the main function of decomposers in an ecosystem?

• Produce energy

• Break down dead material

• Capture sunlight

• Store water

What is a food web?

• A single food chain

• A network of interconnected food chains

• A diagram of energy flow

• A list of all organisms in an ecosystem

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What is the significance of trophic levels in an ecosystem?

• They indicate the age of organisms

• They show the flow of energy

• They measure the size of organisms

• They determine the speed of growth

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Which of the following is an example of an inherited behavior?

• Riding a bicycle

• Speaking a language

• A bird building a nest

• Playing a musical instrument

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What is the role of producers in an ecosystem?

• Consume other organisms

• Decompose organic material

• Produce energy through photosynthesis

• Store nutrients

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