2. The diagram show the food web for a forest ecosystem. Which organism would you expect to find the fewest of in the forest ecosystem?

3. Cyanobacteria also known as blue-green algae, are a kind of bacteria found in many lakes. These organisms make their own food through photosynthesis. Small animals, including mayfly larvae, eat the cyanobacteria. Small fish, such as yellow perch, eat the mayfly larvae. The small fish provide food for larger fish, such as Walley. Choose the level of the food pyramid that represents the energy role of cyanobacteria in the lake ecosystem.

Limiting factors cause the size of populations to

5. Which levels of organization of the ecosystem in order from smallest level to the largest level.

6. Groundhogs inhabiting a meadow environment drink water and rely on plants, including clover for food. Which of the following terms describe BOTH the water and the clover that the groundhogs consume?

7. In a prairie ecosystem, nitrogen and other matter builds up in animal wastes. Which organism RETURNS this matter to the ecosystem by breaking down wastes?

Select the energy role that the organisms is performing with in its ecosystem. Bacteria on the ocean floor use chemical energy to make food

Select the energy role that the organisms is performing with in its ecosystem. Alligator in a swamp feed on other animals

Select the energy role that the organisms is performing with in its ecosystem. Mushrooms in a forest break down dead trees.

Select the energy role that the organisms is performing with in its ecosystem. Shrubs in a meadow use sunlight to produce their own food.