ECOSYSTEM
  • 1. What is an ecosystem simulation?
A) D. A weather prediction system
B) B. A model that shows how organisms interact
C) A. A real forest environment
D) C. A type of animal habitat
  • 2. Which is an example of a biotic factor?
A) B. Soil
B) D. Plants
C) C. Sunlight
D) A. Water
  • 3. What does a food web show?
A) C. Soil layers
B) B. Energy transfer between organisms
C) D. Water cycle only
D) A. Weather patterns
  • 4. What is the main source of energy in most ecosystems?
A) B. Wind
B) D. Soil
C) A. Moon
D) C. Sun
  • 5. Which of the following is a decomposer?
A) B. Grass
B) D. Eagle
C) A. Lion
D) C. Mushroom
  • 6. What is a producer?
A) B. An organism that makes its own food
B) D. A carnivore
C) A. An organism that eats others
D) C. A decomposer
  • 7. In a simulation, what happens when a predator increases?
A) A. Prey increases
B) B. Prey decreases
C) C. Plants disappear immediately
D) D. Nothing changes
  • 8. Which best describes an ecosystem interaction?
A) B. Organisms affecting each other
B) D. Clouds moving
C) A. Animals sleeping
D) C. Rocks forming mountains
  • 9. What might happen if plants are removed from an ecosystem?
A) C. Predators multiply instantly
B) D. Water disappears
C) A. Oxygen increases
D) B. Herbivores lose food source
  • 10. Why do scientists use ecosystem simulations?
A) C. To replace real ecosystems
B) B. To decorate classrooms
C) D. To eliminate animals
D) A. To predict and study changes
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