AP Biology Ecosystems

Which of the following is a primary consumer in this food web?

• Foxes
• Carrots
• Mice
• Owls

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NGSS.MS-LS2-2

Which organism contains the most energy?

• Rabbit
• Grains
• Birds
• Mice

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NGSS.MS-LS2-3

Why is only 10% of the energy passed along to the next trophic level?

• 90% is lost through heat, reproduction, and movement
• 90% is gained
• 90% is lost in light energy
• because only 10% is lost

Tags

NGSS.MS-LS2-3

Which of the following best explains why there are seldom more than five trophic levels in a food chain?

• Most carnivores function at more than one trophic level
• Trophic levels about this numbers contain too many individuals
• Energy is lost from each trophic level
• The ecosystem contains too much biomass

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NGSS.MS-LS2-3

How do matter and energy flow differently?

• Energy flows in one direction, matter is recycled
• Matter flows in one direction, Energy is recycled
• Energy and Matter are both recycled
• Energy and Matter both flow in one direction

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NGSS.HS-LS2-3

NGSS.HS-LS2-4

Primary consumer's energy is 54,000 joules. How much energy was provided to secondary consumers?

• 53,460 J
• 540 J
• 5,400 J
• 54 J

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NGSS.MS-LS2-3

In most ecosystems, net primary productivity is important because it represents the

• Energy used in respiration by herbivores

• Total solar energy converted to chemical energy by producers

• Biomass for all producers

• Energy available for trophic levels above producers

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

What are examples of pioneer species in a primary succession?

• Bushes and Shrubs
• Oak trees
• Mossess and Lichens 
• A rose Bush

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NGSS.MS-LS2-3

What is the most important function of pioneer species?

• To function as decomposers

• To create soil and add nutrients

• Facilitation of the water cycle

• Food for animals

Tags

NGSS.MS-LS2-3

After a forest fire, an ecosystem would start regrowth through -

• primary succession
• secondary succession
• climax community
• limiting factors

Tags

NGSS.MS-LS2-3