Ecosystem Interactions and Energy Flow

What is the process by which plants convert carbon dioxide and water into glucose and oxygen using sunlight?

• Cellular respiration

• Photosynthesis

• Fermentation

• Combustion

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DOK Level 1: Recall

NGSS.HS-LS2-5

Which of the following is a mathematical representation used to describe the flow of energy in an ecosystem?

• Food web

• Energy pyramid

• Carbon cycle

• Water cycle

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DOK Level 1: Recall

NGSS.HS-LS2-4

What term describes the maximum number of individuals of a species that an environment can support?

• Population density

• Carrying capacity

• Biodiversity

• Ecosystem

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DOK Level 1: Recall

NGSS.HS-LS2-1

Which of the following processes releases carbon dioxide back into the atmosphere?

• Photosynthesis

• Cellular respiration

• Nitrogen fixation

• Transpiration

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DOK Level 1: Recall

NGSS.HS-LS2-5

Which factor is most likely to increase the carrying capacity of an ecosystem?

• Increase in predators

• Increase in available resources

• Increase in disease

• Increase in pollution

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DOK Level 2: Skill/Concept

NGSS.HS-LS2-1

How does the introduction of a new species affect biodiversity in an ecosystem?

• It always increases biodiversity.

• It always decreases biodiversity.

• It can either increase or decrease biodiversity.

• It has no effect on biodiversity.

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DOK Level 2: Skill/Concept

NGSS.HS-LS2-2

Which of the following best describes the role of decomposers in the carbon cycle?

• They convert carbon dioxide into glucose.

• They release carbon dioxide by breaking down dead organisms.

• They store carbon in the form of fossil fuels.

• They absorb carbon dioxide from the atmosphere.

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DOK Level 2: Skill/Concept

NGSS.HS-LS2-5

In a stable ecosystem, what is the relationship between the number of predators and prey?

• Predators always outnumber prey.

• Prey always outnumber predators.

• The numbers fluctuate but maintain a balance.

• There is no relationship between their numbers.

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DOK Level 2: Skill/Concept

NGSS.HS-LS2-6

Which mathematical representation can be used to support claims about energy flow in an ecosystem?

• Bar graph

• Pie chart

• Energy pyramid

• Line graph

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DOK Level 1: Recall

NGSS.HS-LS2-4

What is the primary factor that affects the carrying capacity of an ecosystem?

• Climate

• Available resources

• Predator-prey relationships

• Human activity

Tags

DOK Level 2: Skill/Concept

NGSS.HS-LS2-1