APES Unit 1 2019

In which process are nitrate ions and nitrite ions converted into nitrous oxide gas and nitrogen gas?

• Nitrification

• Denitrification

• Assimilation

• Ammonification

• Nitrogen fixation

Tags

NGSS.HS-LS2-3

The major reservoir for sulfur is ___

• Rocks

• Atmosphere

• Vegetation

• Water

Tags

NGSS.MS-ESS2-1

Phosphorus essentially does NOT have a ___ phase in its biogeochemical cycle.

• Solid

• Liquid

• Gas

Tags

NGSS.MS-ESS2-1

Which of the following elements is most likely to limit primary production in freshwater lakes?

• Oxygen

• Carbon

• Iron

• Calcium

• Phosphorus

Tags

NGSS.MS-LS2-1

Most freshwater is stored in ___

• Lakes and rivers

• The atmosphere (water vapor)

• Ice

• Estuaries

Tags

NGSS.MS-ESS2-4

A biome is defined by its characteristic vegetation and overall productivity. What two factors determine these characteristics?

• Temperature

• Longitude

• Precipitation

• Animal life

• Proximity to humans

Tags

NGSS.MS-ESS2-4

Of the following organisms, which occupies the highest (tertiary) trophic level?

• Hawk

• Snake

• Mouse

• Grass

Tags

NGSS.MS-LS2-3

Which trophic level has the MOST biomass?

• Producers

• Primary Consumers

• Secondary Consumers

• Tertiary Consumers

Tags

NGSS.MS-LS2-3

How much energy is LOST between trophic levels?

• 10%

• 90%

• 100%

• 50%

• 75%

Tags

NGSS.MS-LS2-3

Which of the following best explains why decomposers in soils and water are important to ecosystems?

• They recycle nutrients

• They store carbon

• They remove heavy metals

• The increase oxygen levels

• They neutralize acids

Tags

NGSS.MS-LS2-3