AP Biology Unit 8

If the producer level of an ecosystem has 750,000 J of energy, how much energy would be passed on to the secondary consumers?

• 75,000 J

• 7,500 J

• 750 J

• 75 J

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NGSS.MS-LS2-3

Biodiversity refers to

• extinct species

• the variety of species on Earth

• nonrenewable resources

• the rate of species decline

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NGSS.MS-LS4-1

Which of the following pose a threat to biodiversity? Choose all that apply.

• invasive species

• habitat destruction

• population growth

• pollution

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

What stimulus does a photoreceptor sense?

• Heat

• Touch

• Light

• Gravity

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NGSS.MS-LS1-8

Name the taxis: a fish swims with the direction of current

• positive rheotaxis

• negative rheotaxis

• positive hydrotaxis

• rheotaxis

A dog moves towards the smell of food

• chemotaxis

• positive chemotaxis

• negative chemotaxis

• chemokinesis

__________ primary productivity is the total amount of energy that producers convert to chemical energy in organic molecules per unit of time.   

• Net

• Total

• Gross

• None of the above

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NGSS.MS-LS1-6

To measure primary productivity, you can measure carbon dioxide consumption, total carbohydrates produced or ________________.

• dissolved oxygen

• total proteins produced

• light energy entering system

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NGSS.HS-LS1-5

NGSS.HS-LS2-5

If gross primary productivity in a wetland is 3 kg C/m^2/year and respiration is 1.5 kg C/m^2/year, what is the net primary productivity of the wetland?

• Impossible to determine from the given information

• 3 kg C/m^2/year

• 1.5 kg C/m^2/year

• 2 kg C/m^2/year

• 4.5 kg C/m^2/year

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

NPP can be determined

• using GPP + R

• from the dark bottle reading

• from the light bottle reading

• All of the above

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NGSS.HS-LS2-5