NEW
Font size
WorksheetsEnergy flow Review Env
Total questions: 13
Worksheet time: 7mins
Why do higher trophic levels in most ecosystems contain fewer organisms than lower trophic levels?
Energy available for use to the highest trophic level is small
Energy available for use to the lowest trophic level is small.
Energy available for use to the highest trophic level is large.
Energy available for use to the highest and lowest trophic levels is the same.
How much energy is lost at each trophic level?
10%
90%
50%
none
The diagram that shows many feeding relationships in an ecosystem is called a
Energy Pyramid
Food web
Food Chain
Biome
Where is the greatest biomass found in a food web?
producers like grass
herbivores like cows
carnivores like lions
omnivores like racoons
What do the ARROWS in the food chain represent?
the direction the energy is moving
the number of organisms
smallest organisms
the loss of energy
If the plant in the food chain has 20,000 kcal of energy, how much is passed to the insect?
20,000
2000
200
20
IF the owls were removed from the food chain, what would happen to the mouse population?
Removing the owls would not affect the other organisms.
The plant population would increase
The mouse population would decrease
The mouse population would increase
_ flows through a food web and provides energy for each trophic level.
Photosynthesis
Carbon
Energy
Carbon
If all of the plants were removed from a food web what would happen?
Birds and grasshoppers would thrive
Only the snakes would survive
The food web would produce more bacteria to compensate.
The food web would completely collapse
From what do the algae, seaweed, and plankton are all
plants
animals
resources
biomes
Where do plants get their energy from?
the sun
other animals
the soil
the do not need energy
What do you call an animal that eats both plants and meat?
Carnivores
Omnivores
Herbivores
Detritivore
What are examples of decomposers?
lion and a zebra
fungi and bacteria
a tree and a shrub
A buzzards and a frog
