📋 Instructions

I can statements for this quiz:

• I can identify different types of symbiotic relationships

• I can explain the difference between renewable and non-renewable resources

• I can analyze food webs and food chains

Directions: Read each question carefully. Show your work where needed. Use complete sentences for explanation questions.

🔬 Part 1: Multiple Choice & Fill-in-the-Blank

1. A relationship where both organisms benefit is called:

Parasitism

Mutualism

Commensalism

Predation

2. Fill in the blank: A _________________ is a linear sequence showing who eats whom in an ecosystem.

3. Which of these is a renewable resource?

Coal

Natural gas

Solar energy

Oil

4. In parasitism, the organism that benefits is called the _________________ and the organism that is harmed is called the _________________.

5. A food web shows:

Only one food chain

Multiple interconnected food chains

Only producers

Only consumers

✏️ Part 2: Short Answer & Explanations

6. Define symbiosis in your own words:

7. Give one example of mutualism and explain how both organisms benefit:

8. Explain the difference between renewable and non-renewable resources. Give one example of each:

9. Look at this simple food chain: Grass → Rabbit → Fox. What would happen if all the rabbits disappeared? Explain your answer:

10. Why are food webs more realistic than food chains when studying ecosystems?

🎯 Answer Key

1. Mutualism

2. food chain

3. Solar energy

4. parasite; host

5. Multiple interconnected food chains

6. Symbiosis is a close relationship between two different species living together.

7. Sample answer: Bees and flowers - bees get nectar for food, flowers get pollinated for reproduction.

8. Renewable resources can be replenished naturally (like wind energy). Non-renewable resources cannot be replaced once used (like fossil fuels).

9. The fox population would decrease because they lost their food source. The grass population might increase because there are no rabbits eating it.

10. Food webs show that most organisms eat multiple things and are eaten by multiple predators, which is more realistic than the single pathway shown in food chains.

Extension Activity: Research and create your own food web for a local ecosystem, including at least 8 organisms and showing energy flow with arrows.