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20 questions
There would be more food for secondary consumers.
The number of primary consumers would increase.
The number of plants would increase.
The number of secondary consumers would increase.
All energy on Earth ultimately comes from what source? (a)
Which of the following is a food chain in the food web?
Rabbit, mountain lion, fox
Grass, grasshopper, frog, snake, hawk
Grass, caterpillar, robin, mountain lion
Tree, deer, mountain lion, fox
Which of the following is defined as a consumer that must get its food from a different source than itself?
Producer
Heterotroph
Autotroph
Homotroph
What is the purpose of a decomposer?
To break down dead materials and waste from consumers
Eat living organisms
Perform photosynthesis to make carbohydrates
Make carbohydrates using chemical energy.
A food web is a single linear path showing the flow of energy from one organism to another. It is not an interconnected relationship diagram of organisms in a community.
TRUE
FALSE
Match the following:
Owl | Producer/Autotroph | ||
Bird | Secondary Consumer | ||
Plant | Tertiary Consumer | ||
Snake | Top Predator | ||
Grasshopper | Herbivore |
Why is some energy not passed on to the next trophic level?
The organisms at each level use about 90% of the available energy to live.
The statement is NOT true. All energy IS passed from one trophic level to the next.
The organisms at each level use about 10% of the available energy to live.
Most energy is absorbed by the soil instead.
Only 10% of the energy is passed on from one trophic level to the next. 90% is lost as heat due to cellular respiration or waste.
Tertiary Consumer
Biotic Factor
Abiotic Factor
10% Rule
Which is a SECONDARY CONSUMER in this food web?
Snake
Mouse
Grass
Wildflowers
Using the food web pictured, how many trophic levels does this energy pyramid have ?
5
6
3
4
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