Lab 7 Identifying Limiting Nutrient - Sayre School

Lab 7: The Ecosystem Drawing
The following items should be ILLUSTRATED in your ecosystem:
1. On your Ecosystem drawing you need four producers, correctly labeled with organism
common name, scientific name and correctly labeled with trophic level.
2. On your Ecosystem drawing you need at least 9 consumers (including herbivores, carnivores,
omnivores), correctly labeled with organism common name, scientific name, and correctly
labeled with trophic level.
3. On your Ecosystem drawing you need two decomposers correctly labeled with trophic level.
You may use generic decomposers like fungi and bacteria to make the nutrients cycle in your
biome.
4. On your Ecosystem drawing, you need four different Food Chains, each color-coded to
identify them clearly. Arrows should be drawn in correct direction. Each chain will be used
for one of the nutrient cycles. Make sure the organisms in your food chains actually live in the
same area of the Earth.
5. On your Ecosystem drawing you need the Abiotic Factors listed in lower left corner.
6. On your Ecosystem drawing you need a Primary Energy Source properly labeled and attached
to one plant. Color code that arrow yellow to show how sunlight energy is moving into your
Ecosystem.
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glossary 7.11