Ecosystems Unit 4 Test

What is your name?

Select your class period.

• 1
• 2
• 3
• 4
• 5

1. These organisms gets their energy from the sun through the process of photosynthesis.

• Consumers
• Decomposers
• Producers
• Heterotrophs

2.These organisms breaks down the cells of dead animals and plants into simpler substance and releases them back into the soil.

• Consumers
• Decomposers
• Producers
• Heterotrophs

3. A relationship between individuals from two different species that benefits both individual species.

• Mutualism
• Commensalism
• Parasitism

4. This is where a group of living and nonliving things interact with each other.

• Community
• Consumer
• Population
• Ecosystem

5. Name the tertiary consumer in the food chain.

• lettuce
• greenfly
• ladybird
• thrush
• cat

6. Which one would be a primary consumer?

• Tree
• Grasshopper
• Snake
• Hawk

7. Select all the biotic factors below?

• Clouds
• Trees
• Birds
• Humans

8. This energy pyramid shows the flow of energy in an aquatic food chain. Choose the statement that correctly describes the flow of energy in this diagram.

• Consumers in the pyramid transfer their energy back to the sun after they die.
• Plants at the bottom of the pyramid get their energy from the soil they grow in.
• As you move up the pyramid, there is less energy at each level.
• Each level of consumer needs to make up for the decrease in energy by absorbing energy from the sun