Practice What You Have Learnt (13.4) - Our Environment

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9 questions

Flashcard drill
2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What are the three main types of organisms in an ecosystem?
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Think about who makes their own food and who eats others.
Question 2.
Define non-biodegradable waste.
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These often persist for years without decomposing.
3Question 3.
What role do producers play in an ecosystem?
- Break down waste
- Produce energy
- Consume other organisms
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Think about plants and what they do with sunlight.
4Question 4.
True or False: Decomposers are essential for the nutrient cycle in ecosystems.
- True
- False
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Consider what happens to dead organisms.
Question 5.
Design a new, sustainable ecosystem where human impact is minimized. What would you include and why?
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Consider what natural resources you would utilize.
Question 6.
Evaluate the effects of removing large herbivores from a grassland ecosystem. How would this impact the food web?
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Think about the relationships in the food web structure.

5 more questions in this section. Enroll free to practise them all.