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WorksheetsEcology & Ecosystems
Total questions: 12
Worksheet time: 34mins
Fill in the levels of the ecological pyramid with the organisms in the food web.
Which statement is true based on the food web shown?
Penguins can eat seals.
Squids can eat seagulls.
Krill can eat whales and seals.
Seagulls can eat krill and squid.
Which of the following is a possible food chain in this food web?
Rabbit, mountain lion, fox
Grass, grasshopper, frog, snake, hawk
Grass, caterpillar, robin, mountain lion
Tree, deer, mountain lion, fox
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.
Match the following:
Producer
Plant
Secondary Consumer
Bird
Tertiary Consumer
Snake
Quaternary Consumer
Owl
Primary Consumer
Grasshopper
The Mayfly is a food source for which 3 organisms?
The largest population of organisms found in a food web would be:
How much energy is passed from one trophic level to the next?
.1%
1%
10%
100%
In the energy pyramid pictured here, if the producers generate 100 units of energy, how much of that energy would be passed on to the herbivores?
100 units
50 units
10 units
1 unit
If there is 2000 kcal (units) of energy at the producer level in this particular ecosystem, how many kcal of energy will be available for hawk?
2000 kcal
200 kcal
20 kcal
2 kcal
0.2 kcal
Think about how energy decreases as we go higher up in the energy pyramid. Why do you think there can't be more trophic levels above the hawk?
