LS2.B Quiz

What is the primary source of energy for most ecosystems on Earth?

• The Moon

• The Sun

• Volcanoes

• Ocean Currents

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which process converts solar energy into chemical energy in plants?

• Respiration

• Photosynthesis

• Fermentation

• Transpiration

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NGSS.MS-LS1-6

In a food web, which organisms are typically at the first trophic level?

• Herbivores

• Carnivores

• Producers

• Decomposers

Which of the following is a biogeochemical cycle?

• Water Cycle

• Rock Cycle

• Nitrogen Cycle

• Carbon Cycle

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NGSS.MS-ESS2-4

What is the role of decomposers in an ecosystem?

• They produce energy from sunlight.

• They break down dead organisms and recycle nutrients.

• They consume primary producers.

• They compete with herbivores for food.

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NGSS.MS-LS2-3

Explain how energy flows through an ecosystem.

• Energy flows in a circular pattern.

• Energy flows in a linear, one-way direction from producers to consumers.

• Energy is recycled back to the Sun.

• Energy flows from consumers to producers.

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NGSS.MS-LS2-3

Describe the process of photosynthesis using the chemical equation.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following best describes a food web?

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

• A complex network of interconnected food chains in an ecosystem.

• A single path of energy flow in an ecosystem.

• A diagram showing the number of organisms at each trophic level.

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NGSS.MS-LS2-3

Identify the main components of the carbon cycle.

• Photosynthesis, respiration, decomposition, and combustion

• Evaporation, condensation, precipitation, and runoff

• Nitrogen fixation, nitrification, assimilation, and denitrification

• Weathering, erosion, sedimentation, and metamorphism

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the significance of trophic levels in an ecosystem?

• They indicate the number of organisms in an ecosystem.

• They represent the flow of energy and nutrients through different levels of consumers and producers.

• They show the geographical distribution of species.

• They measure the biodiversity of an ecosystem.

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NGSS.MS-LS2-3