Unit 2 Quiz 2 Review

Energy Transfer

100

Organisms who eat both plants and animals are

omnivores

200

Organisms who can get energy straight from the sun and use it to make food are called _______________ or producers

autotrophs

300

Look at the following food chain:

Seeds->  blue bird-> snake-> Hawk

What is the secondary consumer?

blue bird

400

As energy moves through a food chain, how much is transferred to the next trophic level?

10%

500

Look at the following food chain:

Seeds->  blue bird-> snake-> Hawk

Imagine the snake has 25 J of energy. How much do the seeds have?

2500J 

Water Cycle

100

Water is most commonly found in which reservoir on earth?

the ocean

200

When water moves from the hydrosphere to the atmosphere it is called...

evaporation

300

When water moves from a gas to a liquid it is called

condensation

400

When water moves from the atmosphere into the geosphere it is called...

infiltration

500

water moves from autotrophs to the atmosphere during...

transpiration

Carbon Cycle

100

Which step of the carbon cycle have humans increased the most in the last 100 years?

combustion

200

Which step is the only one which can remove carbon dioxide from the atmosphere?

photosynthesis

300

What is the process/ step that breaks down food in a living organism 

cellular respiration

400

During which step does carbon move from the living environment to the nonliving environment?

cellular respiration

500

Which carbon cycle step eventually leads to the production of fossil fuels?

decomposition

Nitrogen Cycle

100

What two things are responsible for changing nitrogen's state during nitrogen fixation?

bacteria and lightening

200

Which process is the reverse of nitrogen fixation? 

denitrification

300

Biotic factors absorb nitrogen during which step? 

assimilation

400

What is the chemical formula for our unusable atmospheric form of nitrogen?

N₂

500

Nitrogen moves from a living organism to the nonliving environment during...

ammonification

Phosphorus Cycle & Human Impacts

100

The phosphorus cycle never occurs in which sphere?

Atmosphere

200

When wind or water his rocks and phosphorus is released, it is called

weathering or erosion 

300

List two ways excess nutrients could enter a waterway and cause eutrophication.

animal waste or fertilizer

400

When high levels of fertilizer and/or animal wastes enter a body of water, the excess nutrients allow for an algal bloom. This blocks sunlight and eventually depletes the oxygen from the water causing some fish species to die. This is called...

Eutrophication

500

Which step of the carbon cycle have humans DECREASED in the last 100 years

photosynthesis