Vocabulary
BioGeo Cycles
Fill in the Blank
Energy Pyramid
Energy Flow
100

All the food chains combined in an ecosystem

What is a food web? 

100

What compound does photosynthesis remove from the atmosphere?

Carbon Dioxide (CO2)

100

Living things in an ecosystem or things that used to be alive are called _________ factors?

Biotic

100

The base of the Energy pyramid is occupied by what feeding level and what percentage of energy is available

Producers have 100% energy

100

All the food chains start with this source of energy

What is the sun?

200

This element is not found in the atmosphere, and comes from rocks and the soil.

Phosphorus

200

This gas makes up over 70% of our atmosphere.

Nitrogen

200

A _________ is a collection of the same species

population
200

90% of energy is lost as you move from one level of the pyramid to the next.

What is this energy lost as?

Heat

200
True or False: 1st level consumers can never be carnivores
True, carnivores must be 2nd or 3rd level consumers
300

Organism that feed off of dead and decaying remains of producers and consumers

Bonus 300 Points: Give both names this organism is known by.

Decomposer

Bonus: Detritivore

300

What are two ways we add carbon to the atmospher

Cellular Respiration

Decay of Organisms

Burning of Fossil Fuels

300

Air, water, and soil are examples of __________ factors of an ecosystem.

abiotic

300

The 2nd level of the Energy pyramid is occupied by what feeding level and what percentage of energy is available

Primary Consumers get 10% of the energy

300
Why are there fewer consumers than producers in a food web?
There is less energy available the higher you go in the food pyramid
400

Put these in order from smallest to largest (left to right)

A) Community

B) Biosphere

C) Population

D) Organism

E) Biome

F) Ecosystem

D>C>A>F>E>B

400

This process done by bacteria converts atmospheric nitrogen into useable forms for plants.

Nitrogen Fixation

400

Organism that takes non-living matter and uses it to make food (energy) for itself with surplus for other organisms 

"________-troph"

Autotroph

400

The 3rd level of the Energy pyramid is occupied by what feeding level and what percentage of energy is available

The secondary consumers get 1% of the energy

400
Why do producers make up the largest group in the energy pyramid.
Because they make their own food and form the base of energy for the ecosystem.
500

This is a species that if it is lost from an ecosystem, it can reduce biodiversity, causing ecosystem collapse.

What are keystone species.

500

This is what follows a disaster that leaves an ecosystem down to bare rock.

Primary succession

500

Organism that cannot make their own food 

"_____-troph"

Heterotroph

500
Draw an energy pyramid. Include the relative amounts of energy in each trophic level.

Many acceptable answers.

500

Draw me a food web with the following organisms (correct trophic order and arrow direction):

Grass

Eagle

Snake

Mouse

Caterpillar

Should look something like:

Eagle

Snake

Mouse Cricket

Grass

(all arrows moving up to show energy transfer)

M
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