1. What is the primary source of energy in most ecosystems? (1 point)
O consumers
O sunlight
O decomposers
O producers
2. In a food web, which trophic level typically contains the greatest amount of energy? (1 point)
O tertiary consumers
O secondary consumers
O producers
O primary consumers
3. Which of the following best describes the role of decomposers in an ecosystem's food web? (1 point)
• They produce energy through photosynthesis.
• They directly compete with producers for resources.
• They break down organic matter and return nutrients to the soil.
• They consume primary consumers for energy.
4. What happens to the energy as it moves through successive trophic levels in a food chain? (1 point)
• It remains constant
• It decreases
• It increases
• It fluctuates
5. Which of the following terms refers to a network of interconnected food chains within an ecosystem? (1 point)
O food chain
O food pyramid
O energy pyramid
• food web
3 answers
1. What is the primary source of energy in most ecosystems?
- O sunlight
2. In a food web, which trophic level typically contains the greatest amount of energy?
- O producers
3. Which of the following best describes the role of decomposers in an ecosystem's food web?
- They break down organic matter and return nutrients to the soil.
4. What happens to the energy as it moves through successive trophic levels in a food chain?
- It decreases
5. Which of the following terms refers to a network of interconnected food chains within an ecosystem?
- food web
11 answers