10 Multiple Choice Questions on the topic of primary producers in nature
1. What is the primary function of primary producers in an ecosystem?
Consuming other organisms
Producing their own food through photosynthesis or chemosynthesis
Breaking down dead organisms
Producing oxygen from nitrogen
Correct Answer
Wrong Answer
2. Which of the following organisms is NOT a primary producer?
Phytoplankton
Algae
Deer
Cyanobacteria
Correct Answer
Wrong Answer
3. Primary producers obtain energy primarily from which source in most ecosystems?
Sunlight
Wind
Soil minerals
Carbon dioxide
Correct Answer
Wrong Answer
4. In which environment would you most likely find chemosynthetic primary producers?
Rainforests
Deserts
Deep-sea hydrothermal vents
Grasslands
Correct Answer
Wrong Answer
5. What is the byproduct of photosynthesis in primary producers?
Carbon dioxide
Oxygen
Methane
Nitrogen
Correct Answer
Wrong Answer
6. Which of these is a primary producer in ocean ecosystems?
Fish
Phytoplankton
Sea turtles
Coral reefs
Correct Answer
Wrong Answer
7. What role do primary producers play in the carbon cycle?
Release carbon into the atmosphere
Break down carbon compounds
Absorb carbon dioxide during photosynthesis
Release methane into the atmosphere
Correct Answer
Wrong Answer
8. Which of the following organisms uses chemosynthesis rather than photosynthesis?
Moss
Trees
Phytoplankton
Deep-sea bacteria
Correct Answer
Wrong Answer
9. Approximately what percentage of the world's oxygen is produced by ocean phytoplankton?
10%
25%
50%
75%
Correct Answer
Wrong Answer
10. What would happen if primary producers were removed from an ecosystem?
The ecosystem would remain stable
Herbivores would thrive
The food web would collapse
Predator populations would increase
Correct Answer
Wrong Answer
What's Your Reaction?
