AP Environmental Semester 1 Exam

why aren't energy transfers 100% efficient?

• the energy "lost" is converted into a lower-quality energy (example: lost as heat)

• they are 100% efficient in machines, but not in animals

• the animal saves some energy up before it allows itself to be eaten by the organism on the next trophic level

• all of these are correct

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-PS3-5

why are there generally fewer individuals represented in the higher trophic levels compared to the lower?

• energy transfer isn't very efficient, so there isn't enough energy available in most food webs to support a ton of individuals at the higher trophic levels

• all carnivores take more years to fully mature compared to herbivores, so it just takes longer for them to accumulate

• organisms at the higher trophic levels tend to move slower and are more likely to get eaten. this keeps their populations in check

• all of these are equally true

Tags

NGSS.MS-LS2-3

a tundra has a NPP of 5.7 kgC/m2/year. It has a GPP of 13.2 kgC/m2/year. What is the rate of respiration of this ecosystem?

• 7.5 kgC/m2/year

• 18.9 kgC/m2/year

• 11.4 kgC/m2/year

• 2.9 kgC/m2/year

Tags

NGSS.HS-LS2-4

NGSS.HS-LS2-5

if the primary producers contain 20,000 calories and an ecosystem has an ecological efficiency of 5%. How much energy would the secondary consumer level contain?

• 1,000 calories

• 50 calories

• 2.5 calories

• .125 calories

Tags

NGSS.MS-LS2-3

Most oxygen contributed to the atmosphere comes form

• primary producers

• primary consumers

• secondary consumers

• secondary producers

• all of these equally

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

in which biome would you expect to find plants with adaptations that help prevent water loss?

• desert

• rainforest

• seasonal temperate forest

• tundra

• all of these

Tags

NGSS.MS-LS1-5

Which of the following are NOT used to determine the climate of an area?

• average temperature

• average precipitation

• total available land

Tags

NGSS.MS-ESS2-6

which biome has average temperatures of 10 degrees Celsius and receives 275 cm of annual precipitation?

• woodland & shrubland

• tropical seasonal forest

• tropical rainforest

• temperate rainforest

• taiga

biodiversity can been seen in (select all that apply)

• genetic differences between siblings

• number of different species in an area

• number of ecosystems and habitats in an area

• variety of nutrients available in a region

• average precipitation levels of a region

Tags

NGSS.MS-LS2-5

about how many extinctions have there been between 1988 and 2010?

• 100,000

• 10,000

• 20,000

• 2,000

• 1,500

Tags

NGSS.MS-LS2-4

NGSS.MS-ESS3-4